| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
000 - Document - Document And Entity Information |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-document-and-entity-information |
| 2 |
Document Information [Table] |
Table |
* |
* |
dei:DocumentInformationTable |
| 3 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 4 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 5 |
Document Information [Line Items] |
LineItems |
|
|
dei:DocumentInformationLineItems |
| 6 |
Entity Registrant Name |
Concept (Text/String) |
For Period |
|
dei:EntityRegistrantName |
| 7 |
Entity Central Index Key |
Concept (CIK Number) |
For Period |
|
dei:EntityCentralIndexKey |
| 8 |
Trading Symbol |
Concept (Text/String) |
For Period |
|
dei:TradingSymbol |
| 9 |
Current Fiscal Year End Date |
Concept (Month/Day) |
For Period |
|
dei:CurrentFiscalYearEndDate |
| 10 |
Entity Filer Category |
Concept (Filer Category) |
For Period |
|
dei:EntityFilerCategory |
| 11 |
Entity Current Reporting Status |
Concept (Yes/No) |
For Period |
|
dei:EntityCurrentReportingStatus |
| 12 |
Entity Voluntary Filers |
Concept (Yes/No) |
For Period |
|
dei:EntityVoluntaryFilers |
| 13 |
Entity Well-known Seasoned Issuer |
Concept (Yes/No) |
For Period |
|
dei:EntityWellKnownSeasonedIssuer |
| 14 |
Entity Emerging Growth Company |
Concept (Yes/No) |
For Period |
|
dei:EntityEmergingGrowthCompany |
| 15 |
Entity Small Business |
Concept (Yes/No) |
For Period |
|
dei:EntitySmallBusiness |
| 16 |
Entity Common Stock, Shares Outstanding (in shares) |
Concept (Shares) |
As Of |
|
dei:EntityCommonStockSharesOutstanding |
| 17 |
Document Type |
Concept (Submission Type) |
For Period |
|
dei:DocumentType |
| 18 |
Document Period End Date |
Concept (Date) |
For Period |
|
dei:DocumentPeriodEndDate |
| 19 |
Document Fiscal Year Focus |
Concept (Year) |
For Period |
|
dei:DocumentFiscalYearFocus |
| 20 |
Document Fiscal Period Focus |
Concept (Fiscal Period) |
For Period |
|
dei:DocumentFiscalPeriodFocus |
| 21 |
Amendment Flag |
Concept (Yes/No) |
For Period |
|
dei:AmendmentFlag |
| 22 |
Entity Shell Company |
Concept (Yes/No) |
For Period |
|
dei:EntityShellCompany |
| 23 |
001 - Statement - Consolidated Income Statement |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement--consolidated-income-statement |
| 24 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 25 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 26 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 27 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 28 |
Continuing operations |
Abstract |
|
|
ts:ContinuingOperationsAbstract |
| 29 |
Net sales |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 30 |
Cost of sales |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfSales |
| 31 |
Gross profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GrossProfit |
| 32 |
Selling, general and administrative expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:SellingGeneralAndAdministrativeExpense |
| 33 |
Other operating income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherIncome |
| 34 |
Other operating expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByFunction |
| 35 |
Operating income (loss) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromOperatingActivities |
| 36 |
Finance income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 37 |
Finance cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 38 |
Other financial results |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherFinanceIncomeCost |
| 39 |
Income (loss) before equity in earnings of non-consolidated companies and income tax |
Concept (Monetary) |
For Period |
Credit |
ts:LossIncomeBeforeEquityInEarningsOfNonconsolidatedCompaniesAndIncomeTax |
| 40 |
Equity in earnings of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 41 |
Income before income tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 42 |
Income tax |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 43 |
Income for continuing operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromContinuingOperations |
| 44 |
Basic and diluted earnings (losses) per share (in dollars per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicAndDilutedEarningsLossPerShareFromContinuingOperations |
| 45 |
Basic and diluted earnings per ADS (U.S. dollars per ADS) (*) (in dollars per share) |
Concept (Share) |
For Period |
|
ts:BasicAndDilutedEarningsLossesPerAdsFromContinuingOperations |
| 46 |
Discontinued operations |
Abstract |
|
|
ts:DiscontinuedOperationsAbstract |
| 47 |
Result for discontinued operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromDiscontinuedOperations |
| 48 |
Income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 49 |
Attributable to: |
Abstract |
|
|
ifrs-full:ProfitLossAttributableToAbstract |
| 50 |
Owners of the parent |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToOwnersOfParent |
| 51 |
Non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToNoncontrollingInterests |
| 52 |
Income (loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 53 |
Earnings per share attributable to the owners of the parent during the year: |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 54 |
Weighted average number of ordinary shares (thousands) (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:WeightedAverageShares |
| 55 |
Continuing and discontinued operations |
Abstract |
|
|
ts:ContinuingAndDiscontinuedOperationsAbstract |
| 56 |
Basic and diluted earnings (losses) per share (in dollars per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicAndDilutedEarningsLossPerShare |
| 57 |
Basic and diluted earnings per ADS (U.S. dollars per ADS) (*) (in dollars per share) |
Concept (Share) |
For Period |
|
ts:BasicAndDilutedEarningsLossesPerAds |
| 58 |
002 - Statement - Consolidated Statement of Comprehensive Income |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-consolidated-statement-of-comprehensive-income |
| 59 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 60 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 61 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 62 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 63 |
Income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 64 |
Items that may be subsequently reclassified to profit or loss: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 65 |
Currency translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation |
| 66 |
Change in value of cash flow hedges and instruments at fair value |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges |
| 67 |
Income tax relating to components of other comprehensive income |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss |
| 68 |
- Currency translation adjustment (*) |
Concept (Monetary) |
For Period |
Debit |
ts:OtherComprehensiveIncomeLossBeforeTaxExchangeDifferencesOnTranslationAttributableToNonconsolidatedCompanies |
| 69 |
- Changes in the fair value of derivatives held as cash flow hedges and others |
Concept (Monetary) |
For Period |
Credit |
ts:OtherComprehensiveIncomeBeforeTaxCashFlowHedgesAndOthersAttributableToNonconsolidatedCompanies |
| 70 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 71 |
Items that will not be reclassified to profit or loss: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 72 |
Remeasurements of post employment benefit obligations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 73 |
Income tax on items that will not be reclassified |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss |
| 74 |
Remeasurements of post employment benefit obligations of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax |
| 75 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax |
| 76 |
Other comprehensive (loss) income for the year, net of tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 77 |
Total comprehensive income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 78 |
Total comprehensive income (loss) for the year attributable to: |
Abstract |
|
|
ifrs-full:ComprehensiveIncomeAttributableToAbstract |
| 79 |
Owners of the parent |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent |
| 80 |
Non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests |
| 81 |
Total comprehensive income (loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 82 |
Total comprehensive income (loss) for the year attributable to Owners of the parent arises from |
Abstract |
|
|
ts:TotalComprehensiveIncomeLossForTheYearAttributableToOwnersOfTheParentArisesFromAbstract |
| 83 |
Continuing operations |
Concept (Monetary) |
For Period |
Credit |
ts:ComprehensiveIncomeFromContinuingOperations |
| 84 |
Discontinued operations |
Concept (Monetary) |
For Period |
Credit |
ts:ComprehensiveIncomeFromDiscontinuedOperations |
| 85 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent |
| 86 |
003 - Statement - Consolidated Statement of Financial Position |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-consolidated-statement-of-financial-position |
| 87 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 88 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 89 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 90 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 91 |
Property, plant and equipment, net |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 92 |
Intangible assets, net |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 93 |
Investments in non-consolidated companies |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates |
| 94 |
Other equity investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssetsAvailableforsale |
| 95 |
Other investments - non-current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 96 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 97 |
Receivables, net |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivables |
| 98 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 99 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 100 |
Receivables and prepayments, net |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 101 |
Current tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 102 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 103 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentDerivativeFinancialAssets |
| 104 |
Other investments - current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 105 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 106 |
Current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 107 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 108 |
Capital and reserves attributable to owners of the parent |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 109 |
Non-controlling interests |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncontrollingInterests |
| 110 |
Total equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 111 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 112 |
Deferred tax liabilities to be recovered after 12 months |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 113 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 114 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 115 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 116 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 117 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 118 |
Current tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 119 |
Other liabilities current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 120 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 121 |
Customer advances |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentAdvances |
| 122 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 123 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 124 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 125 |
Total equity and liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 126 |
004 - Statement - Consolidated Statement of Changes In Equity |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-consolidated-statement-of-changes-in-equity |
| 127 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 128 |
Retrospective application and retrospective restatement [axis] |
Axis |
|
|
ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis |
| 129 |
Currently stated [member] |
Member |
|
|
ifrs-full:RestatedMember |
| 130 |
Previously stated [member] |
Member |
|
|
ifrs-full:PreviouslyStatedMember |
| 131 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 132 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 133 |
Issued capital [member] |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 134 |
Legal reserves [member] |
Member |
|
|
ts:LegalReservesMember |
| 135 |
Share premium [member] |
Member |
|
|
ifrs-full:SharePremiumMember |
| 136 |
Currency translation adjustment [member] |
Member |
|
|
ts:CurrencyTranslationAdjustmentMember |
| 137 |
Other reserves [member] |
Member |
|
|
ifrs-full:OtherReservesMember |
| 138 |
Retained earnings [member] |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 139 |
Equity attributable to owners of parent [member] |
Member |
|
|
ifrs-full:EquityAttributableToOwnersOfParentMember |
| 140 |
Non-controlling interests [member] |
Member |
|
|
ifrs-full:NoncontrollingInterestsMember |
| 141 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 142 |
Balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 143 |
Changes in accounting policies (Section II AP) |
Concept (Monetary) |
As Of |
Credit |
ts:EffectOfChangesInAccountingPolicy |
| 144 |
Balance |
Concept (Monetary) |
As Of |
Credit |
ts:EquityAdjustedBalance |
| 145 |
Income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 146 |
Currency translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation |
| 147 |
Remeasurements of post employment benefit obligations, net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 148 |
Change in value of instruments at fair value through other comprehensive income and cash flow hedges, net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome |
| 149 |
From other comprehensive income of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 150 |
Other comprehensive loss for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 151 |
Total comprehensive income (loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 152 |
Acquisition and other changes in non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl |
| 153 |
Dividends paid in cash |
Concept (Monetary) |
For Period |
Debit |
ts:DividendsPaidIncludingNoncontrollingInterest |
| 154 |
Balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 155 |
005 - Statement - Consolidated Statement of Changes In Equity (Parentheticals) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-consolidated-statement-of-changes-in-equity-parentheticals |
| 156 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 157 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 158 |
Authorized share capital (in shares) |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesAuthorised |
| 159 |
Nominal value (in dollars per share) |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 160 |
Shares issued (in shares) |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesIssued |
| 161 |
006 - Statement - Consolidated Statement of Cash Flows |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-consolidated-statement-of-cash-flows |
| 162 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 163 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 164 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 165 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 166 |
Cash flows from operating activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 167 |
Income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 168 |
Adjustments for: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 169 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense |
| 170 |
Income tax accruals less payments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncomeTaxExpense |
| 171 |
Equity in earnings of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates |
| 172 |
Interest accruals less payments, net |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestRevenueExpense |
| 173 |
Changes in provisions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForProvisions |
| 174 |
Income from the sale of Conduit business |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets |
| 175 |
Changes in working capital |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 176 |
Derivatives, currency translation adjustment and others |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherAdjustmentsForNoncashItems |
| 177 |
Net cash provided by (used in) operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 178 |
Cash flows from investing activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 179 |
Capital expenditures |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets |
| 180 |
Changes in advance to suppliers of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities |
| 181 |
Proceeds from disposal of Conduit business |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations |
| 182 |
Investment in non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInterestsInAssociates |
| 183 |
Acquisition of subsidiaries |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities |
| 184 |
Investment in companies under cost method |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 185 |
Loan to non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashAdvancesAndLoansMadeToRelatedParties |
| 186 |
Repayment of loan by non-consolidated companies |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties |
| 187 |
Proceeds from disposal of property, plant and equipment and intangible assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets |
| 188 |
Dividends received from non-consolidated companies |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedFromAssociatesClassifiedAsInvestingActivities |
| 189 |
Changes in investments in securities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments |
| 190 |
Net cash provided by (used in) investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 191 |
Cash flows from financing activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 192 |
Dividends paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidClassifiedAsFinancingActivities |
| 193 |
Dividends paid to non-controlling interest in subsidiaries |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities |
| 194 |
Changes in non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries |
| 195 |
Proceeds from borrowings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities |
| 196 |
Repayments of borrowings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities |
| 197 |
Net cash used in financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 198 |
Increase (decrease) in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges |
| 199 |
Movement in cash and cash equivalents |
Abstract |
|
|
ts:MovementInCashAndCashEquivalentsAbstract |
| 200 |
At the beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition |
| 201 |
Effect of exchange rate changes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 202 |
Increase (decrease) in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalents |
| 203 |
At December 31, |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition |
| 204 |
Cash and bank deposits |
Concept (Monetary) |
As Of |
Debit |
ts:CashAndCashEquivalentsIncludingThePortionOfCashAndCashEquivalentsThatAreClassifiedAsAPartOfADisposalGroup |
| 205 |
Bank overdrafts |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BankOverdraftsClassifiedAsCashEquivalents |
| 206 |
007 - Disclosure - General Information |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-general-information |
| 207 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 208 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 209 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 210 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 211 |
Disclosure of general information about financial statements [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory |
| 212 |
008 - Disclosure - Accounting Policies |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-accounting-policies |
| 213 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 214 |
New IFRSs [axis] |
Axis |
|
|
ifrs-full:NewIFRSsAxis |
| 215 |
New IFRSs [member] |
Member |
|
|
ifrs-full:NewIFRSsMember |
| 216 |
IFRS 9 [member] |
Member |
|
|
ts:IFRS9Member |
| 217 |
Initially applied IFRSs [axis] |
Axis |
|
|
ifrs-full:InitiallyAppliedIFRSsAxis |
| 218 |
Initially applied IFRSs [member] |
Member |
|
|
ifrs-full:InitiallyAppliedIFRSsMember |
| 219 |
IFRS 15 [member] |
Member |
|
|
ts:IFRS15Member |
| 220 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 221 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 222 |
Adoption of new accouting pronoucements [member] |
Member |
|
|
ts:AdoptionOfNewAccoutingPronoucementsMember |
| 223 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 224 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 225 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 226 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 227 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 228 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 229 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 230 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 231 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 232 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 233 |
Preference shares [member] |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 234 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 235 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 236 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 237 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 238 |
T/T Group [member] |
Member |
|
|
ts:TTGroupMember |
| 239 |
Ternium entitites [member] |
Member |
|
|
ts:TerniumEntititesMember |
| 240 |
Confab [member] |
Member |
|
|
ts:ConfabMember |
| 241 |
NSSMC [member] |
Member |
|
|
ts:NSSMCMember |
| 242 |
Previdencia Usiminas [member] |
Member |
|
|
ts:PrevidenciaUsiminasMember |
| 243 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 244 |
Tecpetrol International S.A. [member] |
Member |
|
|
ts:TecpetrolInternationalSAMember |
| 245 |
Tenaris [member] |
Member |
|
|
ts:TenarisMember |
| 246 |
Types of contracts [axis] |
Axis |
|
|
ifrs-full:TypesOfContractsAxis |
| 247 |
Types of contracts [member] |
Member |
|
|
ifrs-full:TypesOfContractsMember |
| 248 |
The new SHA [member] |
Member |
|
|
ts:TheNewSHAMember |
| 249 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 250 |
Entity's total for joint ventures [member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 251 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 252 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 253 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 254 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 255 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 256 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 257 |
Intangible assets and goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 258 |
Information system projects [member] |
Member |
|
|
ts:InformationSystemProjectsMember |
| 259 |
Licenses, patents, trademarks, and proprietary technology [member] |
Member |
|
|
ts:LicensesPatentsTrademarksAndProprietaryTechnologyMember |
| 260 |
Trademarks [member] |
Member |
|
|
ts:TrademarksMember |
| 261 |
Customer-related intangible assets [member] |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 262 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 263 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 264 |
Maverick acquisition [member] |
Member |
|
|
ts:MaverickAcquisitionMember |
| 265 |
Hydrill acquisition [member] |
Member |
|
|
ts:HydrillAcquisitionMember |
| 266 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 267 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 268 |
Unfunded defined benefit employee retirement plan for certain senior officers [member] |
Member |
|
|
ts:UnfundedDefinedBenefitEmployeeRetirementPlanForCertainSeniorOfficersMember |
| 269 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 270 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 271 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 272 |
ITALY |
Member |
|
|
country:IT |
| 273 |
CANADA |
Member |
|
|
country:CA |
| 274 |
UNITED STATES |
Member |
|
|
country:US |
| 275 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 276 |
Disclosure of significant accounting policies [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 277 |
009 - Disclosure - Financial Risk Management |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management |
| 278 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 279 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 280 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 281 |
One percent change, Argentine Peso / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:OnePercentChangeArgentinePesoUsDollarForeignExchangeRiskMember |
| 282 |
One percent change, Euro / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:OnePercentChangeEuroUsDollarForeignExchangeRiskMember |
| 283 |
Customer concentration risk [member] |
Member |
|
|
ts:CustomerConcentrationRisk1Member |
| 284 |
Counterparty risk [member] |
Member |
|
|
ts:CounterpartyRiskMember |
| 285 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 286 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 287 |
Foreign exchange derivatives contracts [member] |
Member |
|
|
ts:ForeignExchangeDerivativesContractsMember |
| 288 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 289 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 290 |
Fixed interest rate [member] |
Member |
|
|
ifrs-full:FixedInterestRateMember |
| 291 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 292 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 293 |
Guarantees under credit insurance [member] |
Member |
|
|
ts:GuaranteesUnderCreditInsuranceMember |
| 294 |
Letter of credit and other bank guarantees [member] |
Member |
|
|
ts:LetterOfCreditAndOtherBankGuaranteesMember |
| 295 |
Other guarantees [member] |
Member |
|
|
ts:OtherGuaranteesMember |
| 296 |
Financial guarantee contracts [member] |
Member |
|
|
ifrs-full:FinancialGuaranteeContractsMember |
| 297 |
Past due status [axis] |
Axis |
|
|
ifrs-full:PastDueStatusAxis |
| 298 |
Past due status [member] |
Member |
|
|
ifrs-full:PastDueStatusMember |
| 299 |
Past due [member] |
Member |
|
|
ts:PastDueMember |
| 300 |
Past due up to 15 days [member] |
Member |
|
|
ts:PastDueUpTo15DaysMember |
| 301 |
Past due over 15 days [member] |
Member |
|
|
ts:PastDueOver15DaysMember |
| 302 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 303 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 304 |
Allowance for doubtful accounts - trade receivables [member] |
Member |
|
|
ts:AllowanceForDoubtfulAccountsTradeReceivablesMember |
| 305 |
Currency [Axis] |
Axis |
|
|
srt:CurrencyAxis |
| 306 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 307 |
UNITED STATES |
Member |
|
|
country:US |
| 308 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 309 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 310 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 311 |
Disclosure of financial instruments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialInstrumentsExplanatory |
| 312 |
010 - Disclosure - Note 1 - Segment Information |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-1-segment-information |
| 313 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 314 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 315 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 316 |
Elimination of intersegment amounts [member] |
Member |
|
|
ifrs-full:EliminationOfIntersegmentAmountsMember |
| 317 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 318 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 319 |
LUXEMBOURG |
Member |
|
|
country:LU |
| 320 |
UNITED STATES |
Member |
|
|
country:US |
| 321 |
ARGENTINA |
Member |
|
|
country:AR |
| 322 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 323 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 324 |
Tenaris [member] |
Member |
|
|
ts:TenarisMember |
| 325 |
Types of customers [axis] |
Axis |
|
|
ifrs-full:TypesOfCustomersAxis |
| 326 |
Types of customers [member] |
Member |
|
|
ifrs-full:TypesOfCustomersMember |
| 327 |
Government customers [member] |
Member |
|
|
ifrs-full:GovernmentCustomersMember |
| 328 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 329 |
Disclosure of entity's operating segments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory |
| 330 |
011 - Disclosure - Note 2 - Cost of Sales |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-2-cost-of-sales |
| 331 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 332 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 333 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 334 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 335 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 336 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 337 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 338 |
Disclosure of cost of sales [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCostOfSalesExplanatory |
| 339 |
012 - Disclosure - Note 3 - Selling, General and Administrative Expenses |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-3-selling-general-and-administrative-expenses |
| 340 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 341 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 342 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 343 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 344 |
Disclosure of general and administrative expense [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeneralAndAdministrativeExpenseExplanatory |
| 345 |
013 - Disclosure - Note 4 - Labor Costs - Labor Costs (Included in Cost of Sales and in Selling, General and Administrative Expenses) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-4-labor-costs-labor-costs-included-in-cost-of-sales-and-in-selling-general-and-administrative-expenses |
| 346 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 347 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 348 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 349 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 350 |
Disclosure of employee benefits [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEmployeeBenefitsExplanatory |
| 351 |
014 - Disclosure - Note 5 - Other Operating Income and Expenses |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-5-other-operating-income-and-expenses |
| 352 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 353 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 354 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 355 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 356 |
Disclosure of other operating income (expense) [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory |
| 357 |
015 - Disclosure - Note 6 - Financial Results |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-6-financial-results |
| 358 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 359 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 360 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 361 |
Financial assets at fair value through profit or loss, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 362 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 363 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 364 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 365 |
Disclosure of finance income (cost) [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory |
| 366 |
016 - Disclosure - Note 7 - Income Tax |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-7-income-tax |
| 367 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 368 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 369 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 370 |
ARGENTINA |
Member |
|
|
country:AR |
| 371 |
UNITED STATES |
Member |
|
|
country:US |
| 372 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 373 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 374 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 375 |
Disclosure of income tax [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIncomeTaxExplanatory |
| 376 |
017 - Disclosure - Note 8 - Dividends Distribution |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-8-dividends-distribution |
| 377 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 378 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 379 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 380 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 381 |
Disclosure of dividends [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDividendsExplanatory |
| 382 |
018 - Disclosure - Note 9 - Property, Plant and Equipment, Net |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-9-property-plant-and-equipment-net |
| 383 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 384 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 385 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 386 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 387 |
Disclosure of property, plant and equipment [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory |
| 388 |
019 - Disclosure - Note 10 - Intangible Assets, Net |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-10-intangible-assets-net |
| 389 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 390 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 391 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 392 |
North America [member] |
Member |
|
|
ts:NorthAmerica1Member |
| 393 |
South America [member] |
Member |
|
|
ts:SouthAmerica1Member |
| 394 |
Europe [member] |
Member |
|
|
ts:Europe1Member |
| 395 |
Middle East and Africa [member] |
Member |
|
|
ts:MiddleEastAndAfricaMember |
| 396 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 397 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 398 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 399 |
Disclosure of intangible assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIntangibleAssetsExplanatory |
| 400 |
020 - Disclosure - Note 11 - Investments in Non-consolidated Companies |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies |
| 401 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 402 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 403 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 404 |
Ternium and Usiminas [member] |
Member |
|
|
ts:TerniumAndUsiminasMember |
| 405 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 406 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 407 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 408 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 409 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 410 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 411 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 412 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 413 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 414 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 415 |
Preference shares [member] |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 416 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 417 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 418 |
San Faustin S.A. [member] |
Member |
|
|
ts:SanFaustinSaMember |
| 419 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 420 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 421 |
Subsidiary loans [member] |
Member |
|
|
ts:SubsidiaryLoansMember |
| 422 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 423 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 424 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 425 |
Disclosure of interests in other entities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestsInOtherEntitiesExplanatory |
| 426 |
021 - Disclosure - Note 12 - Receivables - Non Current |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-12-receivables-non-current |
| 427 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 428 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 429 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 430 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 431 |
Disclosure of non-current receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfNoncurrentReceivablesTextBlock |
| 432 |
022 - Disclosure - Note 13 - Inventories |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-13-inventories |
| 433 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 434 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 435 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 436 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 437 |
Disclosure of inventories [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInventoriesExplanatory |
| 438 |
023 - Disclosure - Note 14 - Receivables and Prepayments |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-14-receivables-and-prepayments |
| 439 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 440 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 441 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 442 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 443 |
Disclosure of receivables and prepayments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfReceivablesAndPrepaymentsTextBlock |
| 444 |
024 - Disclosure - Note 15 - Current Tax Assets and Liabilities |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-15-current-tax-assets-and-liabilities |
| 445 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 446 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 447 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 448 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 449 |
Disclosure of tax receivables and payables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTaxReceivablesAndPayablesExplanatory |
| 450 |
025 - Disclosure - Note 16 - Trade Receivables, Net |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-16-trade-receivables-net |
| 451 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 452 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 453 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 454 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 455 |
Disclosure of trade and other receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory |
| 456 |
026 - Disclosure - Note 17 - Cash and Cash Equivalents and Other Investments |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-17-cash-and-cash-equivalents-and-other-investments |
| 457 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 458 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 459 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 460 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 461 |
Disclosure of cash and cash equivalents and other investments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfCashAndCashEquivalentsAndOtherInvestmentsTextBlock |
| 462 |
027 - Disclosure - Note 18 - Borrowings |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings |
| 463 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 464 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 465 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 466 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 467 |
Disclosure of borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBorrowingsExplanatory |
| 468 |
028 - Disclosure - Note 19 - Deferred Income Tax |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax |
| 469 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 470 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 471 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 472 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 473 |
Disclosure of deferred taxes [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDeferredTaxesExplanatory |
| 474 |
029 - Disclosure - Note 20 - Other Liabilities |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities |
| 475 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 476 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 477 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 478 |
Unfunded post-employment benefits [member] |
Member |
|
|
ts:UnfundedPostemploymentBenefitsMember |
| 479 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 480 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 481 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 482 |
Actuarial assumption of discount rates [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 483 |
Actuarial assumption of expected rates of salary increases [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 484 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 485 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 486 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 487 |
Disclosure of other liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherLiabilitiesExplanatory |
| 488 |
030 - Disclosure - Note 21 - Non-current Allowances and Provisions |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-21-noncurrent-allowances-and-provisions |
| 489 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 490 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 491 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 492 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 493 |
Disclosure of non-current allowances and provisions [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfNoncurrentAllowancesAndProvisionsTextBlock |
| 494 |
031 - Disclosure - Note 22 - Current Allowances and Provisions |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-22-current-allowances-and-provisions |
| 495 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 496 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 497 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 498 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 499 |
Disclosure of current allowances and provisions [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfCurrentAllowancesAndProvisionsTextBlock |
| 500 |
032 - Disclosure - Note 23 - Derivative Financial Instruments |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments |
| 501 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 502 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 503 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 504 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 505 |
Disclosure of derivative financial instruments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory |
| 506 |
033 - Disclosure - Note 24 - Contingencies, Commitments and Restrictions On the Distribution of Profits |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-24-contingencies-commitments-and-restrictions-on-the-distribution-of-profits |
| 507 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 508 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 509 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 510 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 511 |
TENARIS GLOBAL SERVICES S.A. and subsidiaries [member] |
Member |
|
|
ts:TenarisGlobalServicesSaAndSubsidiariesMember |
| 512 |
TENARIS BAY CITY, INC. [member] |
Member |
|
|
ts:TenarisBayCityIncMember |
| 513 |
SIDERCA S.A.I.C. and subsidiaries [member] |
Member |
|
|
ts:SidercaSaicAndSubsidiariesMember |
| 514 |
Segeta [member] |
Member |
|
|
ts:SegetaMember |
| 515 |
Tamsa [member] |
Member |
|
|
ts:TamsaMember |
| 516 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 517 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 518 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 519 |
Companhia Siderúrgica Nacional [member] |
Member |
|
|
ts:CompanhiaSiderrgicaNacionalMember |
| 520 |
Petroamazonas [member] |
Member |
|
|
ts:PetroamazonasMember |
| 521 |
Contractor [member] |
Member |
|
|
ts:ContractorMember |
| 522 |
Argentine state-owned company [member] |
Member |
|
|
ts:ArgentineStateownedCompanyMember |
| 523 |
Mexican tax authorities [member] |
Member |
|
|
ts:MexicanTaxAuthoritiesMember |
| 524 |
Tribunal de Contas da Uniao [member] |
Member |
|
|
ts:TribunalDeContasDaUniaoMember |
| 525 |
Transportadora de Gas del Norte S.A. [member] |
Member |
|
|
ts:TransportadoraDeGasDelNorteSaMember |
| 526 |
Praxair S.A. [member] |
Member |
|
|
ts:PraxairSAMember |
| 527 |
Graftech [member] |
Member |
|
|
ts:GraftechMember |
| 528 |
Vale International S.A. [member] |
Member |
|
|
ts:ValeInternationalSAMember |
| 529 |
Canadian National Railway [member] |
Member |
|
|
ts:CanadianNationalRailwayMember |
| 530 |
Air Liquide Mexico S. de R.L. de C.V. [member] |
Member |
|
|
ts:AirLiquideMexicoSDeRLDeCVMember |
| 531 |
Long term contracts with several customers and parent companies guarantees [member] |
Member |
|
|
ts:LongTermContractsWithSeveralCustomersAndParentCompaniesGuaranteesMember |
| 532 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 533 |
Contingent liabilities [member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 534 |
Legal proceedings contingent liability [member] |
Member |
|
|
ifrs-full:LegalProceedingsContingentLiabilityMember |
| 535 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 536 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 537 |
Confab [member] |
Member |
|
|
ts:ConfabMember |
| 538 |
Counterparty Name [Axis] |
Axis |
|
|
srt:CounterpartyNameAxis |
| 539 |
Counterparty Name [Domain] |
Member |
|
|
srt:RepurchaseAgreementCounterpartyNameDomain |
| 540 |
Chubb [member] |
Member |
|
|
ts:ChubbMember |
| 541 |
Veracel Celulose S.A. [member] |
Member |
|
|
ts:VeracelCeluloseSaMember |
| 542 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 543 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 544 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 545 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 546 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 547 |
Equity in accordance with Luxembourg law [member] |
Member |
|
|
ts:EquityInAccordanceWithLuxembourgLawMember |
| 548 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 549 |
Disclosure of commitments and contingent liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory |
| 550 |
034 - Disclosure - Note 25 - Acquisition of Subsidiaries |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-25-acquisition-of-subsidiaries |
| 551 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 552 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 553 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 554 |
Garrett [member] |
Member |
|
|
ts:GarrettMember |
| 555 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 556 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 557 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 558 |
Disclosure of business combinations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBusinessCombinationsExplanatory |
| 559 |
035 - Disclosure - Note 26 - Cash Flow Disclosures |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-26-cash-flow-disclosures |
| 560 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 561 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 562 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 563 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 564 |
Disclosure of cash flow statement [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCashFlowStatementExplanatory |
| 565 |
036 - Disclosure - Note 27 - Discontinued Operations |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations |
| 566 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 567 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 568 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 569 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 570 |
Disclosure of non-current assets held for sale and discontinued operations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory |
| 571 |
037 - Disclosure - Note 28 - Related Party Transactions |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-28-related-party-transactions |
| 572 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 573 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 574 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 575 |
San Faustin S.A. [member] |
Member |
|
|
ts:SanFaustinSaMember |
| 576 |
Key management personnel of entity or parent [member] |
Member |
|
|
ifrs-full:KeyManagementPersonnelOfEntityOrParentMember |
| 577 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 578 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 579 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 580 |
Disclosure of related party [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRelatedPartyExplanatory |
| 581 |
038 - Disclosure - Note 29 - Principal Subsidiaries |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-29-principal-subsidiaries |
| 582 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 583 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 584 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 585 |
HYDRIL COMPANY and subsidiaries [member] |
Member |
|
|
ts:HydrilCompanyAndSubsidiariesMember |
| 586 |
Technical Drilling & Production Services Nigeria. Ltd [member] |
Member |
|
|
ts:TechnicalDrillingProductionServicesNigeriaLtdMember |
| 587 |
Tenaris Supply Chain S.A. [member] |
Member |
|
|
ts:TenarisSupplyChainSaMember |
| 588 |
Gepnaris S.A. [member] |
Member |
|
|
ts:GepnarisSaMember |
| 589 |
Tubular Technical Services and Pipe Coaters [member] |
Member |
|
|
ts:TubularTechnicalServicesAndPipeCoatersMember |
| 590 |
Amaja Tubular Services Limited [member] |
Member |
|
|
ts:AmajaTubularServicesLimitedMember |
| 591 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 592 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 593 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 594 |
Disclosure of interests in subsidiaries [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory |
| 595 |
039 - Disclosure - Note 30 - Nationalization of Venezuelan Subsidiaries |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-30-nationalization-of-venezuelan-subsidiaries |
| 596 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 597 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 598 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 599 |
Matesi Materiales Siderúrgicos S.A [member] |
Member |
|
|
ts:MatesiMaterialesSiderrgicosSaMember |
| 600 |
Tavsa and Comsigua [member] |
Member |
|
|
ts:TavsaAndComsiguaMember |
| 601 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 602 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 603 |
VENEZUELA |
Member |
|
|
country:VE |
| 604 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 605 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 606 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 607 |
Disclosure of Nationalization of Subsidiaries [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfNationalizationOfSubsidiariesTextBlock |
| 608 |
040 - Disclosure - Note 31 - Fees Paid to the Company's Principal Accountant |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-31-fees-paid-to-the-companys-principal-accountant |
| 609 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 610 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 611 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 612 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 613 |
Disclosure of additional information [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAdditionalInformationExplanatory |
| 614 |
041 - Disclosure - Note 32 - Subsequent Events |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-32-subsequent-events |
| 615 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 616 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 617 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 618 |
Saudi Steel Pipe Company [member] |
Member |
|
|
ts:SaudiSteelPipeCompanyMember |
| 619 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 620 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 621 |
Major business combination [member] |
Member |
|
|
ifrs-full:MajorBusinessCombinationMember |
| 622 |
Dividends proposed after the reporting period [member] |
Member |
|
|
ts:DividendsProposedAfterTheReportingPeriodMember |
| 623 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 624 |
Entity's total for joint ventures [member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 625 |
Welded pipe plant in West Siberia [member] |
Member |
|
|
ts:WeldedPipePlantInWestSiberiaMember |
| 626 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 627 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 628 |
PAO Severstal [member] |
Member |
|
|
ts:PAOPSeverstalMember |
| 629 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 630 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 631 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 632 |
Several banks, to refinance obligations [member] |
Member |
|
|
ts:SeveralBanksToRefinanceObligationsMember |
| 633 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 634 |
Disclosure of events after reporting period [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory |
| 635 |
042 - Disclosure - Note 33 - Update As of April 1, 2019 |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-33-update-as-of-april-1-2019 |
| 636 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 637 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 638 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 639 |
IPSCO acquisition [member] |
Member |
|
|
ts:IPSCOAcquisitionMember |
| 640 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 641 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 642 |
Major business combination [member] |
Member |
|
|
ifrs-full:MajorBusinessCombinationMember |
| 643 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 644 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 645 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 646 |
Disclosure of events after reporting period and approval date [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfEventsAfterReportingPeriodAndApprovalDateTextBlock |
| 647 |
043 - Disclosure - Significant Accounting Policies (Policies) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-significant-accounting-policies-policies |
| 648 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 649 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 650 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 651 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 652 |
Discloure of Significant Accounting Policies |
Abstract |
|
|
ts:DisclosureOfSignificantAccountingPoliciesAbstract |
| 653 |
Description of accounting policy for basis of presentation [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DescriptionOfAccountingPolicyForBasisOfPresentationTextBlock |
| 654 |
Description of accounting policy for investment in associates and joint ventures [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory |
| 655 |
Description of accounting policy for segment reporting [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory |
| 656 |
Description of accounting policy for foreign currency translation [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory |
| 657 |
Description of accounting policy for property, plant and equipment [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory |
| 658 |
Description of accounting policy for intangible assets and goodwill [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory |
| 659 |
Description of accounting policy for impairment of non-financial assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory |
| 660 |
Description of accounting policy for investments other than investments accounted for using equity method [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 661 |
Description of accounting policy for measuring inventories [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories |
| 662 |
Description of accounting policy for trade and other receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory |
| 663 |
Description of accounting policy for determining components of cash and cash equivalents [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents |
| 664 |
Description of accounting policy for issued capital [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory |
| 665 |
Description of accounting policy for borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForBorrowingsExplanatory |
| 666 |
Description of accounting policy for current and deferred income tax [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DescriptionOfAccountingPolicyForCurrentAndDeferredIncomeTaxTextBlock |
| 667 |
Description of accounting policy for employee benefits [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory |
| 668 |
Description of accounting policy for provisions [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory |
| 669 |
Description of accounting policy for trade and other payables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory |
| 670 |
Description of accounting policy for recognition of revenue [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue |
| 671 |
Description of accounting policy for expenses [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForExpensesExplanatory |
| 672 |
Description of accounting policy for earnings per share [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory |
| 673 |
Description of accounting policy for financial instruments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory |
| 674 |
Description of accounting policy for non-current assets or disposal groups classified as held for sale and discontinued operations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory |
| 675 |
044 - Disclosure - Accounting Policies (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-accounting-policies-tables |
| 676 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 677 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 678 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 679 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 680 |
Disclosure of reclassification of financial instruments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReclassificationOfFinancialInstrumentsExplanatory |
| 681 |
Disclosure of detailed information about the estimated useful lives of property, plant and equipment [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutTheEstimatedUsefulLivesOfPropertyPlantAndEquipmentTextBlock |
| 682 |
045 - Disclosure - Financial Risk Management (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-tables |
| 683 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 684 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 685 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 686 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 687 |
Disclosure of effect of changes in foreign exchange rates [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory |
| 688 |
Disclosure of financial instruments by type of interest rate [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory |
| 689 |
Disclosure of detailed information about financial instruments at fair value by category and levels [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutFinancialInstrumentsAtFairValueByCategoryAndLevelsTextBlock |
| 690 |
Disclosure of fair value measurement of assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory |
| 691 |
046 - Disclosure - Note 1 - Segment Information (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-1-segment-information-tables |
| 692 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 693 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 694 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 695 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 696 |
Disclosure of operating segments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOperatingSegmentsExplanatory |
| 697 |
Disclosure of geographical areas [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeographicalAreasExplanatory |
| 698 |
047 - Disclosure - Note 2 - Cost of Sales (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-2-cost-of-sales-tables |
| 699 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 700 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 701 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 702 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 703 |
Disclosure of detailed information about cost of sales [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCostOfSalesTextBlock |
| 704 |
048 - Disclosure - Note 3 - Selling, General and Administrative Expenses (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-3-selling-general-and-administrative-expenses-tables |
| 705 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 706 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 707 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 708 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 709 |
Disclosure of detailed information about selling, general and administrative expenses [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutSellingGeneralAndAdministrativeExpensesTextBlock |
| 710 |
049 - Disclosure - Note 4 - Labor Costs - Labor Costs (Included in Cost of Sales and in Selling, General and Administrative Expenses) (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-4-labor-costs-labor-costs-included-in-cost-of-sales-and-in-selling-general-and-administrative-expenses-tables |
| 711 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 712 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 713 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 714 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 715 |
Disclosure of detailed information about labor costs [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutLaborCostsTextBlock |
| 716 |
Disclosure of information about number of employees [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfInformationAboutNumberOfEmployeesTextBlock |
| 717 |
050 - Disclosure - Note 5 - Other Operating Income and Expenses (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-5-other-operating-income-and-expenses-tables |
| 718 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 719 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 720 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 721 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 722 |
Disclosure of detailed information about other operating income and expenses [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutOtherOperatingIncomeAndExpensesTextBlock |
| 723 |
051 - Disclosure - Note 6 - Financial Results (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-6-financial-results-tables |
| 724 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 725 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 726 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 727 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 728 |
Disclosure of detailed information about financial income (cost) [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutFinancialIncomeCost |
| 729 |
052 - Disclosure - Note 7 - Income Tax (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-7-income-tax-tables |
| 730 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 731 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 732 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 733 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 734 |
Disclosure of detailed information about income tax expense (benefit) [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutIncomeTaxExpenseBenefitTextBlock |
| 735 |
Disclosure of difference between income before tax and the theoretical amount that would arise using tax rate in each country [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDifferenceBetweenIncomeBeforeTaxAndTheTheoreticalAmountThatWouldAriseUsingTaxRateInEachCountryTextBlock |
| 736 |
053 - Disclosure - Note 9 - Property, Plant and Equipment, Net (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-9-property-plant-and-equipment-net-tables |
| 737 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 738 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 739 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 740 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 741 |
Disclosure of detailed information about property, plant and equipment [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 742 |
054 - Disclosure - Note 10 - Intangible Assets, Net (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-10-intangible-assets-net-tables |
| 743 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 744 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 745 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 746 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 747 |
Disclosure of reconciliation of changes in intangible assets and goodwill [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory |
| 748 |
Disclosure of information for cash-generating units [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory |
| 749 |
055 - Disclosure - Note 11 - Investments in Non-consolidated Companies (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies-tables |
| 750 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 751 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 752 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 753 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 754 |
Disclosure of detailed information about investments in non-consolidated companies [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutInvestmentsInNonconsolidatedCompaniesTextBlock |
| 755 |
Disclosure of detailed information about principal non-consolidated companies [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutPrincipalNonconsolidatedCompaniesTextBlock |
| 756 |
Disclosure of detailed information about selected financial information [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutSelectedFinancialInformationTextBlock |
| 757 |
056 - Disclosure - Note 12 - Receivables - Non Current (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-12-receivables-non-current-tables |
| 758 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 759 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 760 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 761 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 762 |
Disclosure of detailed information about non-current receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutNoncurrentReceivablesTextBlock |
| 763 |
057 - Disclosure - Note 13 - Inventories (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-13-inventories-tables |
| 764 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 765 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 766 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 767 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 768 |
Disclosure of detailed information about inventories [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutInventoriesTextBlock |
| 769 |
058 - Disclosure - Note 14 - Receivables and Prepayments (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-14-receivables-and-prepayments-tables |
| 770 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 771 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 772 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 773 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 774 |
Disclosure of detailed information about receivables and prepayments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutReceivablesAndPrepaymentsTextBlock |
| 775 |
059 - Disclosure - Note 15 - Current Tax Assets and Liabilities (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-15-current-tax-assets-and-liabilities-tables |
| 776 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 777 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 778 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 779 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 780 |
Disclosure of detailed information about current tax assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCurrentTaxAssetsTextBlock |
| 781 |
Disclosure of detailed information about tax liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutTaxLiabilitiesTextBlock |
| 782 |
060 - Disclosure - Note 16 - Trade Receivables, Net (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-16-trade-receivables-net-tables |
| 783 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 784 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 785 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 786 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 787 |
Disclosure of detailed information about current trade receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCurrentTradeReceivablesTextBlock |
| 788 |
Disclosure if detailed information about the aging of trade receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureIfDetailedInformationAboutTheAgingOfTradeReceivablesTextBlock |
| 789 |
061 - Disclosure - Note 17 - Cash and Cash Equivalents and Other Investments (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-17-cash-and-cash-equivalents-and-other-investments-tables |
| 790 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 791 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 792 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 793 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 794 |
Detailed disclosure of cash and cash equivalents and other investments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DetailedDisclosureOfCashAndCashEquivalentsAndOtherInvestmentsTextBlock |
| 795 |
062 - Disclosure - Note 18 - Borrowings (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-tables |
| 796 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 797 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 798 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 799 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 800 |
Disclosure of detailed information about borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory |
| 801 |
Disclosure of detailed information about the maturity of borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutTheMaturityOfBorrowingsTextBlock |
| 802 |
Disclosure of detailed information about significant borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutSignificantBorrowingsTextBlock |
| 803 |
Disclosure of detailed information about weighted average interest rates of borrowings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutWeightedAverageInterestRatesOfBorrowingsTextBlock |
| 804 |
Disclosure of detailed information about borrowings by currency and rate [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutBorrowingsByCurrencyAndRateTextBlock |
| 805 |
Disclosure of borrowings evolution [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfBorrowingsEvolutionTextBlock |
| 806 |
063 - Disclosure - Note 19 - Deferred Income Tax (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax-tables |
| 807 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 808 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 809 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 810 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 811 |
Disclosure of deferred tax assets and liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDeferredTaxAssetsAndLiabilitiesTextBlock |
| 812 |
Disclosure of recovery analysis of deferred tax assets and liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfRecoveryAnalysisOfDeferredTaxAssetsAndLiabilitiesTextBlock |
| 813 |
Deferred tax [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DeferredTaxTextBlock |
| 814 |
064 - Disclosure - Note 20 - Other Liabilities (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-tables |
| 815 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 816 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 817 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 818 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 819 |
Disclosure of other non-current liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory |
| 820 |
Disclosure of net defined benefit liability (asset) [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory |
| 821 |
Disclosure of actuarial assumptions [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfActuarialAssumptionsTextBlock |
| 822 |
Disclosure of fair value of plan assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory |
| 823 |
065 - Disclosure - Note 21 - Non-current Allowances and Provisions (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-21-noncurrent-allowances-and-provisions-tables |
| 824 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 825 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 826 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 827 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 828 |
Disclosure of detailed information about non-current allowances and provisions deducted from non-current receivables [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutNoncurrentAllowancesAndProvisionsDeductedFromNoncurrentReceivablesTextBlock |
| 829 |
Disclosure of detailed information about non-current allowances and provisions from liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutNoncurrentAllowancesAndProvisionsFromLiabilitiesTextBlock |
| 830 |
066 - Disclosure - Note 22 - Current Allowances and Provisions (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-22-current-allowances-and-provisions-tables |
| 831 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 832 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 833 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 834 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 835 |
Disclosure of detailed information about current allowances and provisions deducted from assets [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCurrentAllowancesAndProvisionsDeductedFromAssetsTextBlock |
| 836 |
Disclosure of detailed information about current allowances and provisions from liabilities [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCurrentAllowancesAndProvisionsFromLiabilitiesTextBlock |
| 837 |
067 - Disclosure - Note 23 - Derivative Financial Instruments (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments-tables |
| 838 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 839 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 840 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 841 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 842 |
Disclosure of detailed information about derivative financial instruments [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutDerivativeFinancialInstrumentsTextBlock |
| 843 |
Disclosure of detailed information about hedged items [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsExplanatory |
| 844 |
Disclosure of detailed information of the hedge reserve evolution [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationOfTheHedgeReserveEvolutionTextBlock |
| 845 |
068 - Disclosure - Note 24 - Contingencies, Commitments and Restrictions On the Distribution of Profits (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-24-contingencies-commitments-and-restrictions-on-the-distribution-of-profits-tables |
| 846 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 847 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 848 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 849 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 850 |
Disclosure of detailed information about equity if different from the financial statements [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutEquityIfDifferentFromTheFinancialStatementsTextBlock |
| 851 |
Disclosure of detailed information about distributable retained earnings [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutDistributableRetainedEarningsTextBlock |
| 852 |
069 - Disclosure - Note 26 - Cash Flow Disclosures (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-26-cash-flow-disclosures-tables |
| 853 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 854 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 855 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 856 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 857 |
Disclosure of detailed information about cash flow disclosures [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDetailedInformationAboutCashFlowDisclosuresTextBlock |
| 858 |
070 - Disclosure - Note 27 - Discontinued Operations (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations-tables |
| 859 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 860 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 861 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 862 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 863 |
Disclosure of discontinued operations net income components [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfDiscontinuedOperationsNetIncomeComponentsTextBlock |
| 864 |
Disclosure of sale of discontinued operations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfSaleOfDiscontinuedOperationsTextBlock |
| 865 |
Disclosure of discontinued operations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDiscontinuedOperationsExplanatory |
| 866 |
071 - Disclosure - Note 28 - Related Party Transactions (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-28-related-party-transactions-tables |
| 867 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 868 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 869 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 870 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 871 |
Disclosure of transactions between related parties [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory |
| 872 |
072 - Disclosure - Note 29 - Principal Subsidiaries (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-29-principal-subsidiaries-tables |
| 873 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 874 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 875 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 876 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 877 |
Disclosure of subsidiaries [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory |
| 878 |
073 - Disclosure - Note 31 - Fees Paid to the Company's Principal Accountant (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-31-fees-paid-to-the-companys-principal-accountant-tables |
| 879 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 880 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 881 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 882 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 883 |
Disclosure of auditor's remuneration [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ts:DisclosureOfAuditorsRemunerationTextBlock |
| 884 |
074 - Disclosure - Note 32 - Subsequent Events (Tables) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-32-subsequent-events-tables |
| 885 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 886 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 887 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 888 |
Saudi Steel Pipe Company [member] |
Member |
|
|
ts:SaudiSteelPipeCompanyMember |
| 889 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 890 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 891 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 892 |
Disclosure of detailed information about business combinations [text block] |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory |
| 893 |
075 - Disclosure - Accounting Policies (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-accounting-policies-details-textual |
| 894 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 895 |
New IFRSs [axis] |
Axis |
|
|
ifrs-full:NewIFRSsAxis |
| 896 |
New IFRSs [member] |
Member |
|
|
ifrs-full:NewIFRSsMember |
| 897 |
IFRS 9 [member] |
Member |
|
|
ts:IFRS9Member |
| 898 |
Initially applied IFRSs [axis] |
Axis |
|
|
ifrs-full:InitiallyAppliedIFRSsAxis |
| 899 |
Initially applied IFRSs [member] |
Member |
|
|
ifrs-full:InitiallyAppliedIFRSsMember |
| 900 |
IFRS 15 [member] |
Member |
|
|
ts:IFRS15Member |
| 901 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 902 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 903 |
Adoption of new accouting pronoucements [member] |
Member |
|
|
ts:AdoptionOfNewAccoutingPronoucementsMember |
| 904 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 905 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 906 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 907 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 908 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 909 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 910 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 911 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 912 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 913 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 914 |
Preference shares [member] |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 915 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 916 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 917 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 918 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 919 |
T/T Group [member] |
Member |
|
|
ts:TTGroupMember |
| 920 |
Ternium entitites [member] |
Member |
|
|
ts:TerniumEntititesMember |
| 921 |
Confab [member] |
Member |
|
|
ts:ConfabMember |
| 922 |
NSSMC [member] |
Member |
|
|
ts:NSSMCMember |
| 923 |
Previdencia Usiminas [member] |
Member |
|
|
ts:PrevidenciaUsiminasMember |
| 924 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 925 |
Tecpetrol International S.A. [member] |
Member |
|
|
ts:TecpetrolInternationalSAMember |
| 926 |
Tenaris [member] |
Member |
|
|
ts:TenarisMember |
| 927 |
Types of contracts [axis] |
Axis |
|
|
ifrs-full:TypesOfContractsAxis |
| 928 |
Types of contracts [member] |
Member |
|
|
ifrs-full:TypesOfContractsMember |
| 929 |
The new SHA [member] |
Member |
|
|
ts:TheNewSHAMember |
| 930 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 931 |
Entity's total for joint ventures [member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 932 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 933 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 934 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 935 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 936 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 937 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 938 |
Intangible assets and goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 939 |
Information system projects [member] |
Member |
|
|
ts:InformationSystemProjectsMember |
| 940 |
Licenses, patents, trademarks, and proprietary technology [member] |
Member |
|
|
ts:LicensesPatentsTrademarksAndProprietaryTechnologyMember |
| 941 |
Trademarks [member] |
Member |
|
|
ts:TrademarksMember |
| 942 |
Customer-related intangible assets [member] |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 943 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 944 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 945 |
Maverick acquisition [member] |
Member |
|
|
ts:MaverickAcquisitionMember |
| 946 |
Hydrill acquisition [member] |
Member |
|
|
ts:HydrillAcquisitionMember |
| 947 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 948 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 949 |
Unfunded defined benefit employee retirement plan for certain senior officers [member] |
Member |
|
|
ts:UnfundedDefinedBenefitEmployeeRetirementPlanForCertainSeniorOfficersMember |
| 950 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 951 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 952 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 953 |
ITALY |
Member |
|
|
country:IT |
| 954 |
CANADA |
Member |
|
|
country:CA |
| 955 |
UNITED STATES |
Member |
|
|
country:US |
| 956 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 957 |
Current trade receivables, effect of new accounting standard |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentTradeReceivablesEffectOfNewAccountingStandard |
| 958 |
Aggregate Impact on Revenues Cost of Sales and Selling Expenses |
Concept (Monetary) |
For Period |
Debit |
ts:AggregateImpactOnRevenuesCostOfSalesAndSellingExpenses |
| 959 |
Right-of-use assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RightofuseAssets |
| 960 |
Total lease liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LeaseLiabilities |
| 961 |
Proportion of ownership interest in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 962 |
Proportion of voting rights held in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfVotingPowerHeldInAssociate |
| 963 |
Number of shares subscribed to |
Concept (Shares) |
As Of |
|
ts:NumberOfSharesSubscribedTo |
| 964 |
Shares subscribed to, price per share |
Concept (Share) |
As Of |
|
ts:SharesSubscribedToPricePerShare |
| 965 |
Shares subscribed to, value |
Concept (Monetary) |
As Of |
Credit |
ts:SharesSubscribedToValue |
| 966 |
Interest in associate, shares owned |
Concept (Shares) |
As Of |
|
ts:InterestInAssociateSharesOwned |
| 967 |
Shares bound to SHA |
Concept (Shares) |
As Of |
|
ts:SharesBoundToSHA |
| 968 |
Percent of company voting capital |
Concept (Percent) |
As Of |
|
ts:PercentOfCompanyVotingCapital |
| 969 |
Proportion of ownership interest in joint venture |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInJointVenture |
| 970 |
Impairment loss on equity method investment in non-consolidated companies |
Concept (Monetary) |
For Period |
Debit |
ts:ImpairmentLossOnEquityMethodInvestmentInNonconsolidatedCompanies |
| 971 |
Number of major business segments |
Concept (Integer) |
For Period |
|
ts:NumberOfMajorBusinessSegments |
| 972 |
Number of reportable operating segments |
Concept (Integer) |
For Period |
|
ts:NumberOfReportableOperatingSegments |
| 973 |
Finite-lived intangible asset, useful life |
Concept (xbrli:durationItemType) |
For Period |
|
ts:FinitelivedIntangibleAssetUsefulLife |
| 974 |
Intangible assets and goodwill at end of period |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 975 |
Research and development expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ResearchAndDevelopmentExpense |
| 976 |
Remaining amortisation period of intangible assets material to entity |
Concept (Decimal) |
As Of |
|
ifrs-full:RemainingAmortisationPeriodOfIntangibleAssetsMaterialToEntity |
| 977 |
Selling, general and administrative expenses, amortization of intangible assets |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesAmortizationOfIntangibleAssets |
| 978 |
Finite-lived intangible asset, residual value |
Concept (Monetary) |
As Of |
Debit |
ts:FinitelivedIntangibleAssetResidualValue |
| 979 |
Finite-lived intangible asset, residual useful life |
Concept (xbrli:durationItemType) |
For Period |
|
ts:FinitelivedIntangibleAssetResidualUsefulLife |
| 980 |
Discount rate used in current estimate of value in use |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse |
| 981 |
Number of shares authorised |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesAuthorised |
| 982 |
Par value per share |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 983 |
Total number of shares issued |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesIssued |
| 984 |
Number of shares outstanding at end of period |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 985 |
Number of votes, per share |
Concept (Integer) |
For Period |
|
ts:NumberOfVotesPerShare |
| 986 |
Net defined benefit liability (asset) at end of period |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 987 |
Net defined contribution plan liability (asset) at end of period |
Concept (Monetary) |
As Of |
Credit |
ts:NetDefinedContributionPlanLiabilityAssetAtEndOfPeriod |
| 988 |
Employee benefits, unit vesting period |
Concept (xbrli:durationItemType) |
For Period |
|
ts:EmployeeBenefitsUnitVestingPeriod |
| 989 |
Employee benefits, company redemtpion period |
Concept (xbrli:durationItemType) |
For Period |
|
ts:EmployeeBenefitsCompanyRedemtpionPeriod |
| 990 |
Employee benefits, early redemption period |
Concept (xbrli:durationItemType) |
For Period |
|
ts:EmployeeBenefitsEarlyRedemptionPeriod |
| 991 |
Carrying value of units granted |
Concept (Monetary) |
As Of |
Credit |
ts:CarryingValueOfUnitsGranted |
| 992 |
Dilutive effect of share options on number of ordinary shares |
Concept (Shares) |
For Period |
|
ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares |
| 993 |
076 - Disclosure - Accounting Policies - Carrying Amounts of Financial Assets and Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-accounting-policies-carrying-amounts-of-financial-assets-and-liabilities-details |
| 994 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 995 |
Retrospective application and retrospective restatement [axis] |
Axis |
|
|
ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis |
| 996 |
Currently stated [member] |
Member |
|
|
ifrs-full:RestatedMember |
| 997 |
Previously stated [member] |
Member |
|
|
ifrs-full:PreviouslyStatedMember |
| 998 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 999 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 1000 |
Financial assets at fair value through profit or loss, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 1001 |
Held-to-maturity investments, category [member] |
Member |
|
|
ifrs-full:HeldtomaturityInvestmentsCategoryMember |
| 1002 |
Financial assets at amortised cost, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember |
| 1003 |
Financial assets at fair value through other comprehensive income, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 1004 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1005 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 1006 |
Other reserves [member] |
Member |
|
|
ifrs-full:OtherReservesMember |
| 1007 |
Retained earnings [member] |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 1008 |
Categories of financial liabilities [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialLiabilitiesAxis |
| 1009 |
Financial liabilities, category [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesCategoryMember |
| 1010 |
Financial liabilities at fair value through profit or loss, category [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember |
| 1011 |
Financial liabilities at amortised cost, category [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember |
| 1012 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1013 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1014 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1015 |
Closing balance December 31, 2017 - IAS 39 |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 1016 |
Reclassified bonds and other fixed income from HTM to FVOCI |
Concept (Monetary) |
For Period |
Credit |
ts:ReclassificationOfFixedIncomeInstrumentsFromHTMToFVOCI |
| 1017 |
Reclassified fixed income from FVPL to amortized cost |
Concept (Monetary) |
For Period |
|
ifrs-full:ReclassificationOfFinancialAssetsOutOfMeasuredAtFairValueIntoMeasuredAtAmortisedCost |
| 1018 |
Reclassified fixed income from FVPL to amortized cost |
Concept (Monetary) |
For Period |
|
ifrs-full:ReclassificationOfFinancialAssetsOutOfMeasuredAtFairValueIntoMeasuredAtAmortisedCost |
| 1019 |
Reclassified bonds and other fixed income from FVPL to FVOCI |
Concept (Monetary) |
For Period |
|
ifrs-full:ReclassificationOfFinancialAssetsOutOfMeasuredAtFairValueThroughProfitOrLossIntoMeasuredAtFairValueThroughOtherComprehensiveIncome |
| 1020 |
Closing balance December 31, 2017 - IAS 39 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 1021 |
Opening balance January 1, 2018 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1022 |
Reclassify investments from HTM to FVOCI |
Concept (Monetary) |
For Period |
Credit |
ts:ReclassificationOfInvestmentsFromHTMToFVOCI |
| 1023 |
077 - Disclosure - Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-accounting-policies-estimated-useful-lives-of-property-plant-and-equipment-details |
| 1024 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1025 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 1026 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 1027 |
Buildings and improvements [member] |
Member |
|
|
ts:BuildingsAndImprovementsMember |
| 1028 |
Plant and production equipment [member] |
Member |
|
|
ts:PlantAndProductionEquipmentMember |
| 1029 |
Vehicles, furniture and fixtures, and other equipment [member] |
Member |
|
|
ts:VehiclesFurnitureAndFixturesAndOtherEquipmentMember |
| 1030 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1031 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1032 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1033 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1034 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1035 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1036 |
Property, plant and equipment (Year) |
Concept (xbrli:durationItemType) |
For Period |
|
ts:UsefulLivesPropertyPlantAndEquipment |
| 1037 |
078 - Disclosure - Financial Risk Management (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-details-textual |
| 1038 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1039 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1040 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1041 |
One percent change, Argentine Peso / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:OnePercentChangeArgentinePesoUsDollarForeignExchangeRiskMember |
| 1042 |
One percent change, Euro / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:OnePercentChangeEuroUsDollarForeignExchangeRiskMember |
| 1043 |
Customer concentration risk [member] |
Member |
|
|
ts:CustomerConcentrationRisk1Member |
| 1044 |
Counterparty risk [member] |
Member |
|
|
ts:CounterpartyRiskMember |
| 1045 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 1046 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1047 |
Foreign exchange derivatives contracts [member] |
Member |
|
|
ts:ForeignExchangeDerivativesContractsMember |
| 1048 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 1049 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 1050 |
Fixed interest rate [member] |
Member |
|
|
ifrs-full:FixedInterestRateMember |
| 1051 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 1052 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 1053 |
Guarantees under credit insurance [member] |
Member |
|
|
ts:GuaranteesUnderCreditInsuranceMember |
| 1054 |
Letter of credit and other bank guarantees [member] |
Member |
|
|
ts:LetterOfCreditAndOtherBankGuaranteesMember |
| 1055 |
Other guarantees [member] |
Member |
|
|
ts:OtherGuaranteesMember |
| 1056 |
Financial guarantee contracts [member] |
Member |
|
|
ifrs-full:FinancialGuaranteeContractsMember |
| 1057 |
Past due status [axis] |
Axis |
|
|
ifrs-full:PastDueStatusAxis |
| 1058 |
Past due status [member] |
Member |
|
|
ifrs-full:PastDueStatusMember |
| 1059 |
Past due [member] |
Member |
|
|
ts:PastDueMember |
| 1060 |
Past due up to 15 days [member] |
Member |
|
|
ts:PastDueUpTo15DaysMember |
| 1061 |
Past due over 15 days [member] |
Member |
|
|
ts:PastDueOver15DaysMember |
| 1062 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1063 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1064 |
Allowance for doubtful accounts - trade receivables [member] |
Member |
|
|
ts:AllowanceForDoubtfulAccountsTradeReceivablesMember |
| 1065 |
Currency [Axis] |
Axis |
|
|
srt:CurrencyAxis |
| 1066 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 1067 |
UNITED STATES |
Member |
|
|
country:US |
| 1068 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1069 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1070 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1071 |
Debt to equity ratio |
Concept (Pure) |
As Of |
|
ts:DebtToEquityRatio |
| 1072 |
Foreign exchange risk, currency exposure |
Concept (Monetary) |
As Of |
Credit |
ts:ForeignExchangeRiskCurrencyExposure |
| 1073 |
Reserve of exchange differences on translation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfExchangeDifferencesOnTranslation |
| 1074 |
Total borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1075 |
Current borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermBorrowings |
| 1076 |
Gain (loss) on interest rate risk if market interest rates were higher |
Concept (Monetary) |
For Period |
Credit |
ts:GainLossOnInterestRateRiskIfMarketInterestRatesWereHigher |
| 1077 |
Credit exposure |
Concept (Monetary) |
As Of |
|
ifrs-full:CreditExposure |
| 1078 |
Concentration Risk, percentage |
Concept (Percent) |
For Period |
|
ts:ConcentrationRiskPercentage |
| 1079 |
Current trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1080 |
Other provisions at end of period |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1081 |
Liquid financial assets, percentage |
Concept (Percent) |
As Of |
|
ts:LiquidFinancialAssetsPercentage |
| 1082 |
Liquid financial assets, percentage denominated by a specific currency |
Concept (Percent) |
As Of |
|
ts:LiquidFinancialAssetsPercentageDenominatedByASpecificCurrency |
| 1083 |
Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets |
| 1084 |
Financial liabilities, fair value as a percentage of carrying value |
Concept (Percent) |
As Of |
|
ts:FinancialLiabilitiesFairValueAsAPercentageOfCarryingValue |
| 1085 |
Reserve of cash flow hedges, continuing hedges |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedgesContinuingHedges |
| 1086 |
Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets |
| 1087 |
079 - Disclosure - Financial Risk Management - Financial Assets and Liabilities Which Impact Profit and Loss (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-financial-assets-and-liabilities-which-impact-profit-and-loss-details |
| 1088 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1089 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1090 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1091 |
Argentine Peso / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:ArgentinePesoUsDollarForeignExchangeRiskMember |
| 1092 |
Euro / U.S. dollar foreign exchange risk [member] |
Member |
|
|
ts:EuroUsDollarForeignExchangeRiskMember |
| 1093 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1094 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1095 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1096 |
Currency exposure / functional currency |
Concept (Monetary) |
As Of |
Credit |
ts:ForeignExchangeRiskCurrencyExposure |
| 1097 |
080 - Disclosure - Financial Risk Management - Proportions of Variable-rate and Fixed-rate Debt (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-proportions-of-variablerate-and-fixedrate-debt-details |
| 1098 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1099 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 1100 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 1101 |
Fixed interest rate [member] |
Member |
|
|
ifrs-full:FixedInterestRateMember |
| 1102 |
Floating interest rate [member] |
Member |
|
|
ifrs-full:FloatingInterestRateMember |
| 1103 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1104 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1105 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1106 |
Significant borrowings as of closing date |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1107 |
Percentage |
Concept (Percent) |
For Period |
|
ts:ConcentrationRiskPercentage |
| 1108 |
081 - Disclosure - Financial Risk Management - Financial Instruments and Classification Within the Fair Value Hierarchy (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-financial-instruments-and-classification-within-the-fair-value-hierarchy-details |
| 1109 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1110 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 1111 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 1112 |
Financial assets at amortised cost, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember |
| 1113 |
Financial assets at fair value through other comprehensive income, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 1114 |
Financial assets at fair value through profit or loss, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 1115 |
Loans and receivables, category [member] |
Member |
|
|
ifrs-full:LoansAndReceivablesCategoryMember |
| 1116 |
Held-to-maturity investments, category [member] |
Member |
|
|
ifrs-full:HeldtomaturityInvestmentsCategoryMember |
| 1117 |
Financial assets available-for-sale, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAvailableforsaleCategoryMember |
| 1118 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1119 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1120 |
Level 1 of fair value hierarchy [member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1121 |
Level 2 of fair value hierarchy [member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 1122 |
Level 3 of fair value hierarchy [member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1123 |
Investment [Axis] |
Axis |
|
|
invest:InvestmentAxis |
| 1124 |
Investment [Domain] |
Member |
|
|
invest:InvestmentDomain |
| 1125 |
Fixed Income (time-deposit, zero coupon bonds, commercial papers) [member] |
Member |
|
|
ts:FixedIncomeTimedepositZeroCouponBondsCommercialPapersMember |
| 1126 |
Bonds and other fixed income [member] |
Member |
|
|
ts:BondsAndOtherFixedIncomeMember |
| 1127 |
Other investments [member] |
Member |
|
|
ts:OtherInvestments1Member |
| 1128 |
Investment Securities Class [Axis] |
Axis |
|
|
invest:InvestmentSecuritiesClassAxis |
| 1129 |
Investment Securities Class [Domain] |
Member |
|
|
invest:InvestmentSecuritiesClassDomain |
| 1130 |
Certificates of Deposits [member] |
Member |
|
|
ts:CertificatesOfDepositsMember |
| 1131 |
Commercial Papers [member] |
Member |
|
|
ts:CommercialPapersMember |
| 1132 |
Other notes [member] |
Member |
|
|
ts:OtherNotesMember |
| 1133 |
U.S. government securities [member] |
Member |
|
|
ts:UsGovernmentSecuritiesMember |
| 1134 |
Non - U.S. government securities [member] |
Member |
|
|
ts:NonUsGovernmentSecuritiesMember |
| 1135 |
Corporates securities [member] |
Member |
|
|
ts:CorporatesSecuritiesMember |
| 1136 |
Structured Notes [member] |
Member |
|
|
ts:StructuredNotesMember |
| 1137 |
Mortgage- and Asset-backed securities [member] |
Member |
|
|
ts:MortgageAndAssetbackedSecuritiesMember |
| 1138 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 1139 |
Assets [member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 1140 |
Derivatives [member] |
Member |
|
|
ifrs-full:DerivativesMember |
| 1141 |
Other receivables [member] |
Member |
|
|
ts:OtherReceivablesMember |
| 1142 |
Other receivables (non-Financial) [member] |
Member |
|
|
ts:OtherReceivablesNonfinancialMember |
| 1143 |
Classes of liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfLiabilitiesAxis |
| 1144 |
Liabilities [member] |
Member |
|
|
ifrs-full:LiabilitiesMember |
| 1145 |
Derivative liabilities [member] |
Member |
|
|
ts:DerivativeLiabilitiesMember |
| 1146 |
Foreign exchange derivatives contracts [member] |
Member |
|
|
ts:ForeignExchangeDerivativesContractsMember |
| 1147 |
Other liabilities (non-Financial) [member] |
Member |
|
|
ts:OtherLiabilitiesNonfinancialMember |
| 1148 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1149 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1150 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1151 |
Assets |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 1152 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 1153 |
Other investments - current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 1154 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DerivativeFinancialAssets |
| 1155 |
Other investments - non-current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 1156 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1157 |
Other receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherReceivables |
| 1158 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 1159 |
Cash at banks |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:BalancesWithBanks |
| 1160 |
Liquidity funds |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents |
| 1161 |
Short – term investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents |
| 1162 |
Current trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1163 |
Non-current financial assets available-for-sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssetsAvailableforsale |
| 1164 |
Closing balance December 31, 2017 - IAS 39 |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 1165 |
Liabilities |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 1166 |
Borrowings C and NC |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1167 |
Trade payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 1168 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 1169 |
Closing balance December 31, 2017 - IAS 39 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 1170 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherLiabilities |
| 1171 |
Other liabilities current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 1172 |
082 - Disclosure - Financial Risk Management - Changes in Level 3 Assets and Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-financial-risk-management-changes-in-level-3-assets-and-liabilities-details |
| 1173 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1174 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1175 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1176 |
Level 3 of fair value hierarchy [member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1177 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1178 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1179 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1180 |
At the beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1181 |
Addition / (Decrease) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInFairValueMeasurementAssets |
| 1182 |
Currency translation adjustment and others |
Concept (Monetary) |
For Period |
Debit |
ts:CurrencyTranslationAdjustmentAndOthersFairValueMeasurementAssets |
| 1183 |
At the end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1184 |
083 - Disclosure - Note 1 - Segment Information (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-1-segment-information-details-textual |
| 1185 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1186 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 1187 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 1188 |
Elimination of intersegment amounts [member] |
Member |
|
|
ifrs-full:EliminationOfIntersegmentAmountsMember |
| 1189 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1190 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1191 |
LUXEMBOURG |
Member |
|
|
country:LU |
| 1192 |
UNITED STATES |
Member |
|
|
country:US |
| 1193 |
ARGENTINA |
Member |
|
|
country:AR |
| 1194 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1195 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1196 |
Tenaris [member] |
Member |
|
|
ts:TenarisMember |
| 1197 |
Types of customers [axis] |
Axis |
|
|
ifrs-full:TypesOfCustomersAxis |
| 1198 |
Types of customers [member] |
Member |
|
|
ifrs-full:TypesOfCustomersMember |
| 1199 |
Government customers [member] |
Member |
|
|
ifrs-full:GovernmentCustomersMember |
| 1200 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1201 |
Profit (loss) before tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1202 |
Percentage of entity's revenue |
Concept (Percent) |
For Period |
|
ifrs-full:PercentageOfEntitysRevenue |
| 1203 |
Non-current financial assets available-for-sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssetsAvailableforsale |
| 1204 |
Contract liabilities at end of period |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ContractLiabilities |
| 1205 |
084 - Disclosure - Note 1 - Segment Information - Reportable Operating Segments (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-1-segment-information-reportable-operating-segments-details |
| 1206 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1207 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1208 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1209 |
Tubes [member] |
Member |
|
|
ts:TubesMember |
| 1210 |
All other segments [member] |
Member |
|
|
ifrs-full:AllOtherSegmentsMember |
| 1211 |
Reportable segments [member] |
Member |
|
|
ifrs-full:ReportableSegmentsMember |
| 1212 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 1213 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 1214 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 1215 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1216 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1217 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1218 |
IFRS - Net Sales |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1219 |
Management view - operating income |
Concept (Monetary) |
For Period |
Credit |
ts:ManagementViewOperatingIncome |
| 1220 |
Difference in cost of sales |
Concept (Monetary) |
For Period |
Debit |
ts:ManagementViewDifferencesInCostOfSales |
| 1221 |
Direct cost and others |
Concept (Monetary) |
For Period |
Debit |
ts:DifferencesInDirectCostsAndOthersUnderManagementView |
| 1222 |
Absorption |
Concept (Monetary) |
For Period |
Debit |
ts:ManagementViewDifferencesInAbsorption |
| 1223 |
Differences in depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ts:ManagementViewDifferencesInDepreciationAndAmortization |
| 1224 |
Differences in selling, general and administrative expenses |
Concept (Monetary) |
For Period |
Debit |
ts:ManagementViewDifferencesInSellingGeneralAndAdiministrativeExpenses |
| 1225 |
Differences in other operating income (expenses), net |
Concept (Monetary) |
For Period |
Debit |
ts:ManagementViewDifferencesInOtherOperatingIncomeExpensesNet |
| 1226 |
IFRS - operating income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromOperatingActivities |
| 1227 |
Financial income (expense), net |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncomeCost |
| 1228 |
Income before equity in earnings of non-consolidated companies and income tax |
Concept (Monetary) |
For Period |
Credit |
ts:LossIncomeBeforeEquityInEarningsOfNonconsolidatedCompaniesAndIncomeTax |
| 1229 |
Equity in earnings of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 1230 |
Income before income tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1231 |
Capital expenditures |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets |
| 1232 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 1233 |
085 - Disclosure - Note 1 - Segment Information - Geographical Information (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-1-segment-information-geographical-information-details |
| 1234 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1235 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1236 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1237 |
North America [member] |
Member |
|
|
ts:NorthAmerica1Member |
| 1238 |
South America [member] |
Member |
|
|
ts:SouthAmerica1Member |
| 1239 |
Europe [member] |
Member |
|
|
ts:Europe1Member |
| 1240 |
Middle East and Africa [member] |
Member |
|
|
ts:MiddleEastAndAfricaMember |
| 1241 |
Asia Pacific [member] |
Member |
|
|
ts:AsiaPacific1Member |
| 1242 |
Unallocated region [member] |
Member |
|
|
ts:UnallocatedRegionMember |
| 1243 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 1244 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 1245 |
Continuing operations [member] |
Member |
|
|
ifrs-full:ContinuingOperationsMember |
| 1246 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 1247 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1248 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1249 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1250 |
Net sales |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1251 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1252 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1253 |
Property, plant and equipment, net |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 1254 |
Capital expenditures |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets |
| 1255 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 1256 |
086 - Disclosure - Note 2 - Cost of Sales (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-2-cost-of-sales-details-textual |
| 1257 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1258 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 1259 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 1260 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 1261 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1262 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1263 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1264 |
Total current inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 1265 |
087 - Disclosure - Note 2 - Cost of Sales - Components of Cost of Sales (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-2-cost-of-sales-components-of-cost-of-sales-details |
| 1266 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1267 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1268 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1269 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1270 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 1271 |
Raw materials, energy, consumables and other |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesRawMaterialsEnergyConsumablesAndOther |
| 1272 |
Services and fees |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesServicesAndFees |
| 1273 |
Labor cost |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesLaborCost |
| 1274 |
Depreciation of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesDepreciationOfPropertyPlantAndEquipment |
| 1275 |
Amortization of intangible assets |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesAmortizationOfIntangibleAssets |
| 1276 |
Maintenance expenses |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesMaintenanceExpenses |
| 1277 |
Allowance for obsolescence |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesAllowanceForObsolescence |
| 1278 |
Taxes |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesTaxes |
| 1279 |
Other |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesOther |
| 1280 |
|
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesIncludingDiscontinuedOperations |
| 1281 |
Less: Inventories at the end of the year (*) |
Concept (Monetary) |
As Of |
Debit |
ts:InventoriesIncludingDiscontinuedOperations |
| 1282 |
From discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ts:CostOfSalesDiscontinuedOperations |
| 1283 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfSales |
| 1284 |
088 - Disclosure - Note 3 - Selling, General and Administrative Expenses - Components of Selling, General and Administrative Expenses (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-3-selling-general-and-administrative-expenses-components-of-selling-general-and-administrative-expenses-details |
| 1285 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1286 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1287 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1288 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1289 |
Services and fees |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesServicesAndFees |
| 1290 |
Labor cost |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesLaborCost |
| 1291 |
Depreciation of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesDepreciationOfPropertyPlantAndEquipment |
| 1292 |
Selling, general and administrative expenses, amortization of intangible assets |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesAmortizationOfIntangibleAssets |
| 1293 |
Commissions, freight and other selling expenses |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesCommissionsFreightAndOtherSellingExpenses |
| 1294 |
Provisions for contingencies |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesProvisionsForContingencies |
| 1295 |
Allowances for doubtful accounts |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesAllowancesForDoubtfulAccounts |
| 1296 |
Taxes |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesTaxes |
| 1297 |
Other |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesOther |
| 1298 |
|
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesIncludingDiscontinuedOperations |
| 1299 |
From discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ts:SellingGeneralAndAdministrativeExpensesDiscontinuedOperations |
| 1300 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:SellingGeneralAndAdministrativeExpense |
| 1301 |
089 - Disclosure - Note 4 - Labor Costs - Summary of Labor Costs (Included in Cost of Sales and in Selling, General and Administrative Expenses) (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-4-labor-costs-summary-of-labor-costs-included-in-cost-of-sales-and-in-selling-general-and-administrative-expenses-details |
| 1302 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1303 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1304 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1305 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1306 |
Wages, salaries and social security costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ShorttermEmployeeBenefitsExpense |
| 1307 |
Severance indemnities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TerminationBenefitsExpense |
| 1308 |
Defined contribution plans |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans |
| 1309 |
Pension benefits - defined benefit plans |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1310 |
Employee retention and long term incentive program |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherLongtermBenefits |
| 1311 |
|
Concept (Monetary) |
For Period |
Debit |
ts:EmployeeBenefitsExpenseIncludingDiscontinuedOperations |
| 1312 |
From discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ts:EmployeeBenefitsExpenseDiscontinuedOperations |
| 1313 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 1314 |
090 - Disclosure - Note 4 - Labor Costs - Labor Costs (Included in Cost of Sales and in Selling, General and Administrative Expenses) - Number of Employees (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-4-labor-costs-labor-costs-included-in-cost-of-sales-and-in-selling-general-and-administrative-expenses-number-of-employees-details |
| 1315 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1316 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1317 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1318 |
MEXICO |
Member |
|
|
country:MX |
| 1319 |
ARGENTINA |
Member |
|
|
country:AR |
| 1320 |
UNITED STATES |
Member |
|
|
country:US |
| 1321 |
ITALY |
Member |
|
|
country:IT |
| 1322 |
ROMANIA |
Member |
|
|
country:RO |
| 1323 |
BRAZIL |
Member |
|
|
country:BR |
| 1324 |
COLOMBIA |
Member |
|
|
country:CO |
| 1325 |
CANADA |
Member |
|
|
country:CA |
| 1326 |
INDONESIA |
Member |
|
|
country:ID |
| 1327 |
JAPAN |
Member |
|
|
country:JP |
| 1328 |
Other geographical areas [member] |
Member |
|
|
ts:OtherGeographicalAreasMember |
| 1329 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 1330 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 1331 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 1332 |
Continuing operations [member] |
Member |
|
|
ifrs-full:ContinuingOperationsMember |
| 1333 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1334 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1335 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1336 |
Number of employees |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfEmployees |
| 1337 |
091 - Disclosure - Note 5 - Other Operating Income and Expenses - Components of Other Operating Income and Expenses (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-5-other-operating-income-and-expenses-components-of-other-operating-income-and-expenses-details |
| 1338 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1339 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1340 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1341 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1342 |
Other operating income: |
Abstract |
|
|
ts:OtherOperatingIncomeAbstract |
| 1343 |
Net income from other sales |
Concept (Monetary) |
For Period |
Credit |
ts:OtherOperatingIncomeNetIncomeFromOtherSales |
| 1344 |
Net rents |
Concept (Monetary) |
For Period |
Credit |
ts:OtherOperatingIncomeNetRents |
| 1345 |
Other |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:MiscellaneousOtherOperatingIncome |
| 1346 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherIncome |
| 1347 |
Other operating expenses: |
Abstract |
|
|
ts:OtherOperatingExpensesAbstract |
| 1348 |
Contributions to welfare projects and non-profits organizations |
Concept (Monetary) |
For Period |
Debit |
ts:OtherOperatingExpenseContributionsToWelfareProjectsAndNonprofitsOrganizations |
| 1349 |
Loss on fixed assets and material supplies disposed / scrapped |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:LossesOnDisposalsOfPropertyPlantAndEquipment |
| 1350 |
Allowance for doubtful receivables |
Concept (Monetary) |
For Period |
Debit |
ts:OtherOperatingExpensesAllowanceForDoubtfulReceivables |
| 1351 |
Other |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:MiscellaneousOtherOperatingExpense |
| 1352 |
|
Concept (Monetary) |
For Period |
Debit |
ts:OtherExpenseIncludingDiscontinuedOperations |
| 1353 |
From discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ts:OtherOperatingExpenseDiscontinuedOperations |
| 1354 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByFunction |
| 1355 |
092 - Disclosure - Note 6 - Financial Results (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-6-financial-results-details-textual |
| 1356 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1357 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 1358 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 1359 |
Financial assets at fair value through profit or loss, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 1360 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1361 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1362 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1363 |
Interest income (expense) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestRevenueExpense |
| 1364 |
093 - Disclosure - Note 6 - Financial Results - Financial Income (Cost) (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-6-financial-results-financial-income-cost-details |
| 1365 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1366 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1367 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1368 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1369 |
Interest Income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromInterest |
| 1370 |
Net result on changes in FV of financial assets at FVTPL |
Concept (Monetary) |
For Period |
Credit |
ts:NetFinancialIncomeOnChangesInFVOfFinancialAssetsAtFVTPL |
| 1371 |
Finance income (*) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 1372 |
Finance cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 1373 |
Net foreign exchange transactions results (**) |
Concept (Monetary) |
For Period |
Credit |
ts:NetForeignExchangeTransactionResults |
| 1374 |
Foreign exchange derivatives contracts results (***) |
Concept (Monetary) |
For Period |
Credit |
ts:ForeignExchangeDerivativesContractsResults |
| 1375 |
Other |
Concept (Monetary) |
For Period |
Credit |
ts:OtherForeignExchangeResults |
| 1376 |
Other financial results |
Concept (Monetary) |
For Period |
Credit |
ts:OtherFinancialIncomeCost |
| 1377 |
Net financial results |
Concept (Monetary) |
For Period |
Credit |
ts:FinanceIncomeCostContinuingOperations |
| 1378 |
From discontinued operations |
Concept (Monetary) |
For Period |
Credit |
ts:FinanceIncomeCostDiscontinuedOperations |
| 1379 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncomeCost |
| 1380 |
094 - Disclosure - Note 7 - Income Tax (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-7-income-tax-details-textual |
| 1381 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1382 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1383 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1384 |
ARGENTINA |
Member |
|
|
country:AR |
| 1385 |
UNITED STATES |
Member |
|
|
country:US |
| 1386 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1387 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1388 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1389 |
After tax effect of expense not deductible in determining profit (loss) |
Concept (Monetary) |
For Period |
Credit |
ts:AfterTaxEffectOfExpenseNotDeductibleInDeterminingProfitLoss |
| 1390 |
Deferred tax expense (income) relating to tax rate changes or imposition of new taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes |
| 1391 |
Deferred tax expense (income) relating to origination and reversal of temporary differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences |
| 1392 |
095 - Disclosure - Note 7 - Income Tax - Summary of Income Tax Expense (Benefit) (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-7-income-tax-summary-of-income-tax-expense-benefit-details |
| 1393 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1394 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1395 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1396 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1397 |
Current tax |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 1398 |
Deferred tax |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncome |
| 1399 |
|
Concept (Monetary) |
For Period |
Debit |
ts:IncomeTaxesAccrued |
| 1400 |
From discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ts:TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesAndDiscontinuanceOfDiscontinuedOperations |
| 1401 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1402 |
096 - Disclosure - Note 7 - Income Tax - Summary of Differences Between Income Tax and Theoretical Amount Using Tax Rate in Each Country (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-7-income-tax-summary-of-differences-between-income-tax-and-theoretical-amount-using-tax-rate-in-each-country-details |
| 1403 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1404 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1405 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1406 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1407 |
Income before income tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1408 |
Tax calculated at the tax rate in each country |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxExpenseIncomeAtApplicableTaxRate |
| 1409 |
Non taxable income / Non deductible expenses, net |
Concept (Monetary) |
For Period |
Debit |
ts:TaxEffectOfRevenuesExemptFromTaxationAndExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss |
| 1410 |
Changes in the tax rates |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxEffectFromChangeInTaxRate |
| 1411 |
Effect of currency translation on tax base |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome |
| 1412 |
Accrual / Utilization of previously unrecognized tax losses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxEffectOfTaxLosses |
| 1413 |
Tax charge |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1414 |
097 - Disclosure - Note 8 - Dividends Distribution (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-8-dividends-distribution-details-textual |
| 1415 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1416 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1417 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1418 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1419 |
Dividends recognised as distributions to owners per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsRecognisedAsDistributionsToOwnersPerShare |
| 1420 |
Dividends payable, amount per ads |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerADS |
| 1421 |
Dividends recognised as distributions to owners |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsPaid |
| 1422 |
Dividends payable, amount per share including interim dividend |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerShareIncludingInterimDividend |
| 1423 |
Dividends payable, amount per ads including interim dividend |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerAdsIncludingInterimDividend |
| 1424 |
Dividends paid, ordinary shares per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsPaidOrdinarySharesPerShare |
| 1425 |
Dividends paid, per ads |
Concept (Share) |
For Period |
|
ts:DividendsPaidPerADS |
| 1426 |
098 - Disclosure - Note 9 - Property, Plant and Equipment, Net (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-9-property-plant-and-equipment-net-details-textual |
| 1427 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1428 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1429 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1430 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1431 |
Property, plant and equipment, capitalized interest |
Concept (Monetary) |
As Of |
Debit |
ts:PropertyPlantAndEquipmentCapitalizedInterest |
| 1432 |
Property, plant and equipment, capitalized interest rate |
Concept (Percent) |
For Period |
|
ts:PropertyPlantAndEquipmentCapitalizedInterestRate |
| 1433 |
099 - Disclosure - Note 9 - Property, Plant and Equipment, Net - Components of Property, Plant and Equipment, Net (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-9-property-plant-and-equipment-net-components-of-property-plant-and-equipment-net-details |
| 1434 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1435 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 1436 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 1437 |
Gross carrying amount [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 1438 |
Accumulated depreciation, amortisation and impairment [member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember |
| 1439 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 1440 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 1441 |
Land and civil buildings [member] |
Member |
|
|
ts:LandAndCivilBuildingsMember |
| 1442 |
Industrial buildings, plant and production equipment [member] |
Member |
|
|
ts:IndustrialBuildingsPlantAndProductionEquipmentMember |
| 1443 |
Vehicles, furniture and fixtures [member] |
Member |
|
|
ts:VehiclesFurnitureAndFixturesMember |
| 1444 |
Construction in progress [member] |
Member |
|
|
ifrs-full:ConstructionInProgressMember |
| 1445 |
Spare parts and equipment [member] |
Member |
|
|
ts:SparePartsAndEquipmentMember |
| 1446 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1447 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1448 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1449 |
Beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 1450 |
Translation differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment |
| 1451 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 1452 |
Disposals / Consumptions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment |
| 1453 |
Transfers / Reclassifications |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment |
| 1454 |
Depreciation charge |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 1455 |
End of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 1456 |
Increase due to business combinations (*) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment |
| 1457 |
100 - Disclosure - Note 10 - Intangible Assets, Net (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-10-intangible-assets-net-details-textual |
| 1458 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1459 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1460 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1461 |
North America [member] |
Member |
|
|
ts:NorthAmerica1Member |
| 1462 |
South America [member] |
Member |
|
|
ts:SouthAmerica1Member |
| 1463 |
Europe [member] |
Member |
|
|
ts:Europe1Member |
| 1464 |
Middle East and Africa [member] |
Member |
|
|
ts:MiddleEastAndAfricaMember |
| 1465 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1466 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1467 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1468 |
Goodwill at end of period |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 1469 |
101 - Disclosure - Note 10 - Intangible Assets, Net - Intangible Assets and Goodwill (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-10-intangible-assets-net-intangible-assets-and-goodwill-details |
| 1470 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1471 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 1472 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 1473 |
Gross carrying amount [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 1474 |
Accumulated depreciation, amortisation and impairment [member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember |
| 1475 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 1476 |
Intangible assets and goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 1477 |
Information system projects [member] |
Member |
|
|
ts:InformationSystemProjectsMember |
| 1478 |
Licenses, patents and trademarks [member] |
Member |
|
|
ts:LicensesPatentsAndTrademarksMember |
| 1479 |
Goodwill [member] |
Member |
|
|
ifrs-full:GoodwillMember |
| 1480 |
Customer-related intangible assets [member] |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 1481 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1482 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1483 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1484 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 1485 |
Translation differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill |
| 1486 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 1487 |
Transfers / Reclassifications |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesIntangibleAssetsAndGoodwill |
| 1488 |
Disposals |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsIntangibleAssetsAndGoodwill |
| 1489 |
Amortization charge |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 1490 |
Increase due to business combinations (**) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill |
| 1491 |
Values at the end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 1492 |
102 - Disclosure - Note 10 - Intangible Assets, Net - Goodwill Allocated by CGU (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-10-intangible-assets-net-goodwill-allocated-by-cgu-details |
| 1493 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1494 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1495 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1496 |
Tubes [member] |
Member |
|
|
ts:TubesMember |
| 1497 |
All other segments [member] |
Member |
|
|
ifrs-full:AllOtherSegmentsMember |
| 1498 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 1499 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 1500 |
Maverick acquisition [member] |
Member |
|
|
ts:MaverickAcquisitionMember |
| 1501 |
Hydrill acquisition [member] |
Member |
|
|
ts:HydrillAcquisitionMember |
| 1502 |
Cash-generating units [axis] |
Axis |
|
|
ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis |
| 1503 |
Entity's total for cash-generating units [member] |
Member |
|
|
ifrs-full:EntitysTotalForCashgeneratingUnitsMember |
| 1504 |
OCTG (USA) [member] |
Member |
|
|
ts:OctgUsaMember |
| 1505 |
Tamsa (Hydril and other) [member] |
Member |
|
|
ts:TamsaHydrilAndOtherMember |
| 1506 |
Siderca (Hydril and other) [member] |
Member |
|
|
ts:SidercaHydrilAndOtherMember |
| 1507 |
Hydril [member] |
Member |
|
|
ts:HydrilMember |
| 1508 |
Coiled Tubing [member] |
Member |
|
|
ts:CoiledTubingMember |
| 1509 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 1510 |
Other CGU [member] |
Member |
|
|
ts:OtherCguMember |
| 1511 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1512 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1513 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1514 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 1515 |
103 - Disclosure - Note 11 - Investments in Non-consolidated Companies (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies-details-textual |
| 1516 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1517 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1518 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1519 |
Ternium and Usiminas [member] |
Member |
|
|
ts:TerniumAndUsiminasMember |
| 1520 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 1521 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 1522 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 1523 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1524 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1525 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 1526 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 1527 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1528 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1529 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 1530 |
Preference shares [member] |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 1531 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 1532 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 1533 |
San Faustin S.A. [member] |
Member |
|
|
ts:SanFaustinSaMember |
| 1534 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 1535 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 1536 |
Subsidiary loans [member] |
Member |
|
|
ts:SubsidiaryLoansMember |
| 1537 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1538 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1539 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1540 |
Dividends received from associates, classified as investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedFromAssociatesClassifiedAsInvestingActivities |
| 1541 |
Proportion of voting rights held in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfVotingPowerHeldInAssociate |
| 1542 |
Closing price, per ads |
Concept (Share) |
As Of |
|
ts:ClosingPricePerADS |
| 1543 |
Fair value of investments in associates for which there are quoted market prices |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FairValueOfInvestmentsInAssociatesWherePriceQuotationsPublished |
| 1544 |
Total investments in subsidiaries, joint ventures and associates |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates |
| 1545 |
Closing price, per share |
Concept (Share) |
As Of |
|
ts:ClosingPricePerShare |
| 1546 |
Proportion of ownership interest in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 1547 |
Transportation capacity agreement, purchasing capacity of natural gas per day |
Concept (Pure) |
As Of |
|
ts:TransportationCapacityAgreementPurchasingCapacityOfNaturalGasPerDay |
| 1548 |
Provision for exposure to transportation capacity agreements |
Concept (Monetary) |
As Of |
Credit |
ts:ProvisionForExposureToTransportationCapacityAgreements |
| 1549 |
Provision for exposure to purchase and other service agreements |
Concept (Monetary) |
As Of |
Credit |
ts:ProvisionForExposureToPurchaseAndOtherServiceAgreements |
| 1550 |
Provision for exposure to the purchase of clean energy certificates |
Concept (Monetary) |
As Of |
Credit |
ts:ProvisionForExposureToThePurchaseOfCleanEnergyCertificates |
| 1551 |
Proportion of corporate guarantee covering obligations |
Concept (Percent) |
As Of |
|
ts:ProportionOfCorporateGuaranteeCoveringObligations |
| 1552 |
Amount of loan partially guaranteed |
Concept (Monetary) |
As Of |
|
ts:AmountOfLoanPartiallyGuaranteed |
| 1553 |
Provision of partial guarantee or collateral by entity |
Concept (Monetary) |
As Of |
Credit |
ts:ProvisionOfPartialGuaranteeOrCollateralByEntity |
| 1554 |
Cash advances and loans made to related parties |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashAdvancesAndLoansMadeToRelatedParties |
| 1555 |
Proceeds From (Repayments of Loans) Receivable From Related Parties |
Concept (Monetary) |
For Period |
Debit |
ts:ProceedsFromRepaymentsOfLoansReceivableFromRelatedParties |
| 1556 |
Loans and receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:LoansAndReceivables |
| 1557 |
104 - Disclosure - Note 11 - Investments in Non-consolidated Companies - Summary of Investments in Non-consolidated Companies (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies-summary-of-investments-in-nonconsolidated-companies-details |
| 1558 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1559 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1560 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1561 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1562 |
At the beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates |
| 1563 |
Translation differences |
Concept (Monetary) |
For Period |
Debit |
ts:OtherComprehensiveIncomeLossBeforeTaxExchangeDifferencesOnTranslationAttributableToNonconsolidatedCompanies |
| 1564 |
Equity in earnings of non-consolidated companies |
Concept (Monetary) |
For Period |
Credit |
ts:IncomeLossFromEquityMethodInvestmentsInNonconsolidatedCompanies |
| 1565 |
Dividends and distributions received (*) |
Concept (Monetary) |
For Period |
Credit |
ts:DividendsDeclaredByNonconsolidatedCompanies |
| 1566 |
Decrease / increase in equity reserves and others |
Concept (Monetary) |
For Period |
Credit |
ts:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodIncludingDividendsDeclaredNetOfTax |
| 1567 |
At the end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates |
| 1568 |
105 - Disclosure - Note 11 - Investments in Non-consolidated Companies - Principal Non-consolidated Companies (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies-principal-nonconsolidated-companies-details |
| 1569 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1570 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1571 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1572 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 1573 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 1574 |
Other [member] |
Member |
|
|
ts:OtherMember |
| 1575 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1576 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1577 |
LUXEMBOURG |
Member |
|
|
country:LU |
| 1578 |
BRAZIL |
Member |
|
|
country:BR |
| 1579 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1580 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1581 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1582 |
Percentage of ownership |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 1583 |
Value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates |
| 1584 |
106 - Disclosure - Note 11 - Investments in Non-consolidated Companies - Summary of Selected Financial Information (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-11-investments-in-nonconsolidated-companies-summary-of-selected-financial-information-details |
| 1585 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1586 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1587 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1588 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 1589 |
Usiminas [member] |
Member |
|
|
ts:UsiminasMember |
| 1590 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1591 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1592 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1593 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 1594 |
Current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 1595 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1596 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 1597 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 1598 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 1599 |
Non-controlling interests |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncontrollingInterests |
| 1600 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1601 |
Gross profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GrossProfit |
| 1602 |
Net income for the year attributable to owners of the parent |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToOwnersOfParent |
| 1603 |
Total comprehensive income for the year, net of tax, attributable to owners of the parent |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent |
| 1604 |
107 - Disclosure - Note 12 - Receivables - Non Current - Components of Receivables Non Current (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-12-receivables-non-current-components-of-receivables-non-current-details |
| 1605 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1606 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1607 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1608 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1609 |
Receivables from related parties |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivablesDueFromRelatedParties |
| 1610 |
Receivable Venezuelan subsidiaries |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesFromInterestInVenezuelanCompanies |
| 1611 |
Tax credits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax |
| 1612 |
Legal deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentPrepayments |
| 1613 |
Employee advances and loans |
Concept (Monetary) |
As Of |
Debit |
ts:NoncurrentReceivablesEmployeeAdvancesAndLoans |
| 1614 |
Advances to suppliers and other advances |
Concept (Monetary) |
As Of |
Debit |
ts:NoncurrentReceivablesAdvancesToSuppliersAndOtherAdvances |
| 1615 |
Others |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentReceivables |
| 1616 |
Non-current derivative financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 1617 |
Government entities |
Concept (Monetary) |
As Of |
Debit |
ts:NoncurrentReceivablesGovernmentEntities |
| 1618 |
|
Concept (Monetary) |
As Of |
Debit |
ts:TradeAndOtherNoncurrentReceivablesBeforeTheAllowanceForDoubtfulAccounts |
| 1619 |
Allowances for doubtful accounts (see Note 21 (i)) |
Concept (Monetary) |
As Of |
Credit |
ts:TradeAndOtherNoncurrentReceivablesAllowanceForDoubtfulAccounts |
| 1620 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivables |
| 1621 |
108 - Disclosure - Note 13 - Inventories - Components of Inventories (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-13-inventories-components-of-inventories-details |
| 1622 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1623 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1624 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1625 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1626 |
Finished goods |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinishedGoods |
| 1627 |
Goods in process |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:WorkInProgress |
| 1628 |
Raw materials |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RawMaterials |
| 1629 |
Supplies |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ProductionSupplies |
| 1630 |
Goods in transit |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInventoriesInTransit |
| 1631 |
|
Concept (Monetary) |
As Of |
Debit |
ts:InventoriesGross |
| 1632 |
Allowance for obsolescence (see Note 22 (i)) |
Concept (Monetary) |
As Of |
Credit |
ts:InventoriesAllowanceForObsolescence |
| 1633 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 1634 |
109 - Disclosure - Note 14 - Receivables and Prepayments - Summary of Receivables and Prepayments (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-14-receivables-and-prepayments-summary-of-receivables-and-prepayments-details |
| 1635 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1636 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1637 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1638 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1639 |
Prepaid expenses and other receivables |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsPrepaidExpensesAndOtherReceivables |
| 1640 |
Government entities |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsGovernmentEntities |
| 1641 |
Employee advances and loans |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsEmployeeAdvancesAndLoans |
| 1642 |
Advances to suppliers and other advances |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsAdvancesToSuppliersAndOtherAdvances |
| 1643 |
Government tax refunds on exports |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsGovernmentTaxRefundsOnExports |
| 1644 |
Receivables from related parties |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsReceivablesFromRelatedParties |
| 1645 |
Miscellaneous |
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsMiscellaneous |
| 1646 |
|
Concept (Monetary) |
As Of |
Debit |
ts:ReceivablesAndPrepaymentsGross |
| 1647 |
Allowance for other doubtful accounts (see Note 22 (i)) |
Concept (Monetary) |
As Of |
Credit |
ts:AllowanceForOtherDoubtfulAccounts |
| 1648 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 1649 |
110 - Disclosure - Note 15 - Current Tax Assets and Liabilities - Summary of Current Tax Assets (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-15-current-tax-assets-and-liabilities-summary-of-current-tax-assets-details |
| 1650 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1651 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1652 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1653 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1654 |
V.A.T. credits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentValueAddedTaxReceivables |
| 1655 |
Prepaid taxes |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentPrepaidTaxes |
| 1656 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 1657 |
111 - Disclosure - Note 15 - Current Tax Assets and Liabilities - Summary of Current Tax Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-15-current-tax-assets-and-liabilities-summary-of-current-tax-liabilities-details |
| 1658 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1659 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1660 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1661 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1662 |
Income tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentIncomeTaxLiabilities |
| 1663 |
V.A.T. liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentValueAddedTaxPayables |
| 1664 |
Other taxes |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentOtherTaxLiabilities |
| 1665 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 1666 |
112 - Disclosure - Note 16 - Trade Receivables, Net - Summary of Current Trade Receivables (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-16-trade-receivables-net-summary-of-current-trade-receivables-details |
| 1667 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1668 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1669 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1670 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1671 |
Current accounts |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesCurrentAccounts |
| 1672 |
Receivables from related parties |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties |
| 1673 |
|
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesGross |
| 1674 |
Allowance for doubtful accounts (see Note 22 (i)) |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentTradeReceivablesAllowanceForDoubtfulAccounts |
| 1675 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1676 |
113 - Disclosure - Note 16 - Trade Receivables, Net - Summary of the Aging of Trade Receivables (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-16-trade-receivables-net-summary-of-the-aging-of-trade-receivables-details |
| 1677 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1678 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 1679 |
Assets [member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 1680 |
Current trade receivables, not due [member] |
Member |
|
|
ts:CurrentTradeReceivablesNotDueMember |
| 1681 |
Current trade receivables, past due, less than 180 days [member] |
Member |
|
|
ts:CurrentTradeReceivablesPastDueLessThan180DaysMember |
| 1682 |
Current trade receivables, past due, greater than 180 days [member] |
Member |
|
|
ts:CurrentTradeReceivablesPastDueGreaterThan180DaysMember |
| 1683 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1684 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1685 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1686 |
Guaranteed |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesGuaranteed |
| 1687 |
Not guaranteed |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesNotGuaranteed |
| 1688 |
|
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesGross |
| 1689 |
Expected loss rate |
Concept (Percent) |
As Of |
|
ts:CurrentTradeReceivablesExpectedLossRate |
| 1690 |
Allowances for doubtful accounts |
Concept (Monetary) |
As Of |
Credit |
ts:AllowanceForDoubfulAccountsNetOfNominativeAllowances |
| 1691 |
Nominative allowances for doubtful accounts |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentTradeReceivablesNominativeAllowancesForDoubtfulAccounts |
| 1692 |
Net Value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 1693 |
Effect of adoption of new standard |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentTradeReceivablesEffectOfNewAccountingStandard |
| 1694 |
Net Value after adoption of new standard |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentTradeReceivablesNetOfNewAccountingStandardAdjustment |
| 1695 |
114 - Disclosure - Note 17 - Cash and Cash Equivalents and Other Investments - Components of Cash and Cash Equivalents and Other Investments (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-17-cash-and-cash-equivalents-and-other-investments-components-of-cash-and-cash-equivalents-and-other-investments-details |
| 1696 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1697 |
Investment [Axis] |
Axis |
|
|
invest:InvestmentAxis |
| 1698 |
Investment [Domain] |
Member |
|
|
invest:InvestmentDomain |
| 1699 |
Fixed Income (time-deposit, zero coupon bonds, commercial papers) [member] |
Member |
|
|
ts:FixedIncomeTimedepositZeroCouponBondsCommercialPapersMember |
| 1700 |
Bonds and other fixed income [member] |
Member |
|
|
ts:BondsAndOtherFixedIncomeMember |
| 1701 |
Other investments [member] |
Member |
|
|
ts:OtherInvestments1Member |
| 1702 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1703 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1704 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1705 |
Cash and cash equivalents: |
Abstract |
|
|
ifrs-full:CashAndCashEquivalentsAbstract |
| 1706 |
Cash at banks |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:BalancesWithBanks |
| 1707 |
Liquidity funds |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents |
| 1708 |
Short – term investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents |
| 1709 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 1710 |
Other investments - current: |
Abstract |
|
|
ts:OtherInvestmentsCurrentAbstract |
| 1711 |
Other investments - current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 1712 |
Other investments - Non-current: |
Abstract |
|
|
ts:OtherInvestmentsNoncurrentAbstract |
| 1713 |
Other investments - non-current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 1714 |
115 - Disclosure - Note 18 - Borrowings - Non-current and Current Borrowings (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-noncurrent-and-current-borrowings-details |
| 1715 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1716 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1717 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1718 |
Bank borrowings [member] |
Member |
|
|
ts:BankBorrowingsMember |
| 1719 |
Finance lease liabilities [member] |
Member |
|
|
ts:FinanceLeaseLiabilitiesMember |
| 1720 |
Bank overdrafts [member] |
Member |
|
|
ts:BankOverdrafts1Member |
| 1721 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1722 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1723 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1724 |
Non-current borrowings before costs of issue of debt |
Concept (Monetary) |
As Of |
Credit |
ts:NoncurrentBorrowingsBeforeCostsOfIssueOfDebt |
| 1725 |
Non-current costs of issue of debt |
Concept (Monetary) |
As Of |
Debit |
ts:NoncurrentCostsOfIssueOfDebt |
| 1726 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1727 |
Current borrowings before costs of issue of debt |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentBorrowingsBeforeCostsOfIssueOfDebt |
| 1728 |
Current costs of issue of debt |
Concept (Monetary) |
As Of |
Debit |
ts:CurrentCostsOfIssueOfDebt |
| 1729 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1730 |
Total Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1731 |
116 - Disclosure - Note 18 - Borrowings - Maturity of Borrowings (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-maturity-of-borrowings-details |
| 1732 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1733 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1734 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1735 |
Finance lease liabilities [member] |
Member |
|
|
ts:FinanceLeaseLiabilitiesMember |
| 1736 |
Other borrowings [member] |
Member |
|
|
ts:OtherBorrowingsMember |
| 1737 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1738 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1739 |
Not later than one year [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1740 |
Later than one year and not later than two years [member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 1741 |
Later than two years and not later than three years [member] |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember |
| 1742 |
Later than three years and not later than four years [member] |
Member |
|
|
ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember |
| 1743 |
Later than four years and not later than five years [member] |
Member |
|
|
ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember |
| 1744 |
Later than five years [member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 1745 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1746 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1747 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1748 |
Total borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1749 |
Interest to be accrued (*) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:InterestPayable |
| 1750 |
Total |
Concept (Monetary) |
As Of |
Credit |
ts:BorrowingsIncludingInterestToBeAccrued |
| 1751 |
117 - Disclosure - Note 18 - Borrowings - Significant Borrowings as of Closing Date (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-significant-borrowings-as-of-closing-date-details |
| 1752 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1753 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1754 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1755 |
Significant borrowings as of closing date [member] |
Member |
|
|
ts:SignificantBorrowingsAsOfClosingDateMember |
| 1756 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1757 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1758 |
Tamsa (Hydril and other) [member] |
Member |
|
|
ts:TamsaHydrilAndOtherMember |
| 1759 |
SIDERCA S.A.I.C. and subsidiaries [member] |
Member |
|
|
ts:SidercaSaicAndSubsidiariesMember |
| 1760 |
TENARIS TUBOCARIBE LTDA. [member] |
Member |
|
|
ts:TenarisTubocaribeLtdaMember |
| 1761 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1762 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1763 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1764 |
Significant borrowings as of closing date |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1765 |
118 - Disclosure - Note 18 - Borrowings - Weighted Average Interest Rates of Borrowings (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-weighted-average-interest-rates-of-borrowings-details |
| 1766 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1767 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1768 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1769 |
Weighted average [member] |
Member |
|
|
ifrs-full:WeightedAverageMember |
| 1770 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1771 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1772 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1773 |
Total borrowings, weighted average interest rates |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 1774 |
119 - Disclosure - Note 18 - Borrowings - Borrowings by Currency and Rate (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-borrowings-by-currency-and-rate-details |
| 1775 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1776 |
Currency [Axis] |
Axis |
|
|
srt:CurrencyAxis |
| 1777 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 1778 |
United States of America, Dollars |
Member |
|
|
currency:USD |
| 1779 |
Euro Member Countries, Euro |
Member |
|
|
currency:EUR |
| 1780 |
Other currency [member] |
Member |
|
|
ts:OtherCurrencyMember |
| 1781 |
Mexico, Pesos |
Member |
|
|
currency:MXN |
| 1782 |
Argentina, Pesos |
Member |
|
|
currency:ARS |
| 1783 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 1784 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 1785 |
Fixed interest rate [member] |
Member |
|
|
ifrs-full:FixedInterestRateMember |
| 1786 |
Floating interest rate [member] |
Member |
|
|
ifrs-full:FloatingInterestRateMember |
| 1787 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1788 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1789 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1790 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1791 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1792 |
120 - Disclosure - Note 18 - Borrowings - Borrowings Evolution (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-18-borrowings-borrowings-evolution-details |
| 1793 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1794 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1795 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1796 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1797 |
At the beginning of the year, noncurrent |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1798 |
At the beginning of the year, current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1799 |
Translation differences, noncurrent |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfTranslationDifferencesOnLongtermBorrowings |
| 1800 |
Translation differences, current |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfTranslationDifferencesOnCurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1801 |
Proceeds and repayments, net, noncurrent |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfNetProceedsAndRepaymentsOnLongtermBorrowings |
| 1802 |
Proceeds and repayments, net, current |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfNetProceedsAndRepaymentsOnCurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1803 |
Interests Accrued less payments, noncurrent |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfInterestsAccruedNetOfPaymentsOnLongtermBorrowings |
| 1804 |
Interests Accrued less payments, current |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfInterestsAccruedNetOfPaymentsOnCurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1805 |
Reclassifications, noncurrent |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfReclassificationsOnLongtermBorrowings |
| 1806 |
Reclassifications, current |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfReclassificationsOnCurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1807 |
Overdrafts variation, noncurrent |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfOverdraftsVariationOnLongtermBorrowings |
| 1808 |
Overdrafts variation, current |
Concept (Monetary) |
For Period |
Credit |
ts:EffectOfOverdraftsVariationOnCurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1809 |
At the end of the year, noncurrent |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1810 |
At the end of the year, current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1811 |
121 - Disclosure - Note 19 - Deferred Income Tax (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax-details-textual |
| 1812 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1813 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1814 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1815 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1816 |
Unused tax losses for which no deferred tax asset recognised |
Concept (Monetary) |
As Of |
|
ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised |
| 1817 |
122 - Disclosure - Note 19 - Deferred Income Tax - Deferred Tax Assets and Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax-deferred-tax-assets-and-liabilities-details |
| 1818 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1819 |
Classes of liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfLiabilitiesAxis |
| 1820 |
Liabilities [member] |
Member |
|
|
ifrs-full:LiabilitiesMember |
| 1821 |
Deferred tax liabilities, fixed assets [member] |
Member |
|
|
ts:DeferredTaxLiabilitiesFixedAssetsMember |
| 1822 |
Deferred tax liabilities, inventory [member] |
Member |
|
|
ts:DeferredTaxLiabilitiesInventoryMember |
| 1823 |
Deferred tax liabilities, intangible and other assets [member] |
Member |
|
|
ts:DeferredTaxLiabilitiesIntangibleAndOtherAssetsMember |
| 1824 |
Deferred tab liabilities [member] |
Member |
|
|
ts:DeferredTabLiabilitiesMember |
| 1825 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 1826 |
Assets [member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 1827 |
Deferred tax assets, provisions and allowances [member] |
Member |
|
|
ts:DeferredTaxAssetsProvisionsAndAllowancesMember |
| 1828 |
Deferred tax assets, inventory [member] |
Member |
|
|
ts:DeferredTaxAssetsInventoryMember |
| 1829 |
Deferred tax assets, tax loss [member] |
Member |
|
|
ts:DeferredTaxAssetsTaxLossMember |
| 1830 |
Deferred tax assets, other [member] |
Member |
|
|
ts:DeferredTaxAssetsOtherMember |
| 1831 |
Deferred tax assets [member] |
Member |
|
|
ts:DeferredTaxAssetsMember |
| 1832 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1833 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1834 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1835 |
At the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1836 |
Effect of adoption of new standards |
Concept (Monetary) |
For Period |
Credit |
ts:DeferredTaxLiabilityIncreaseDecreaseDueToAdoptionOfNewAccountingStandards |
| 1837 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset |
| 1838 |
Charged directly to other comprehensive income |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 1839 |
Income statement charge |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 1840 |
Effect of adoption of new standards |
Concept (Monetary) |
For Period |
Credit |
ts:DeferredTaxAssetIncreaseDecreaseDueToAdoptionOfNewAccountingStandards |
| 1841 |
At the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1842 |
Effect of adoption of new standards |
Concept (Monetary) |
For Period |
Credit |
ts:DeferredTaxLiabilityIncreaseDecreaseDueToAdoptionOfNewAccountingStandards |
| 1843 |
123 - Disclosure - Note 19 - Deferred Income Tax - Recovery Analysis of Deferred Tax Assets and Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax-recovery-analysis-of-deferred-tax-assets-and-liabilities-details |
| 1844 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1845 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1846 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1847 |
Later than one year [member] |
Member |
|
|
ifrs-full:LaterThanOneYearMember |
| 1848 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1849 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1850 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1851 |
Deferred tax assets to be recovered after 12 months |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 1852 |
Deferred tax liabilities to be recovered after 12 months |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 1853 |
124 - Disclosure - Note 19 - Deferred Income Tax - Net Deferred Tax Liabilities (Assets) (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-19-deferred-income-tax-net-deferred-tax-liabilities-assets-details |
| 1854 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1855 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1856 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1857 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1858 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 1859 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 1860 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1861 |
125 - Disclosure - Note 20 - Other Liabilities (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-details-textual |
| 1862 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1863 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1864 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1865 |
Unfunded post-employment benefits [member] |
Member |
|
|
ts:UnfundedPostemploymentBenefitsMember |
| 1866 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 1867 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1868 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1869 |
Actuarial assumption of discount rates [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1870 |
Actuarial assumption of expected rates of salary increases [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 1871 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1872 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1873 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1874 |
Actuarial losses (gains) arising from changes in demographic assumptions, net defined benefit liability (asset) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1875 |
Actuarial losses (gains) arising from changes in financial assumptions, net defined benefit liability (asset) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1876 |
Percentage of reasonably possible increase in actuarial assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 1877 |
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1878 |
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1879 |
Overfunded Plan |
Concept (Monetary) |
As Of |
Debit |
ts:OverfundedPlan |
| 1880 |
Percentage of reasonably possible decrease in actuarial assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 1881 |
Estimate of contributions expected to be paid to plan for next annual reporting period |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan |
| 1882 |
126 - Disclosure - Note 20 - Other Liabilities - Other Noncurrent Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-other-noncurrent-liabilities-details |
| 1883 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1884 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1885 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1886 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1887 |
Post-employment benefits |
Concept (Monetary) |
As Of |
Credit |
ts:NoncurrentPostemploymentBenefits |
| 1888 |
Other-long term benefits |
Concept (Monetary) |
As Of |
Credit |
ts:OtherNoncurrentBenefits |
| 1889 |
Miscellaneous |
Concept (Monetary) |
As Of |
Credit |
ts:OtherNoncurrentMiscellaneousLiabilities |
| 1890 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 1891 |
Payroll and social security payable |
Concept (Monetary) |
As Of |
Credit |
ts:CurrentEmployeeRelatedLiabilities |
| 1892 |
Miscellaneous |
Concept (Monetary) |
As Of |
Credit |
ts:OtherCurrentMiscellaneousLiabilities |
| 1893 |
|
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentLiabilities |
| 1894 |
127 - Disclosure - Note 20 - Other Liabilities - Post-employment benefits (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-postemployment-benefits-details |
| 1895 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1896 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1897 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1898 |
Unfunded post-employment benefits [member] |
Member |
|
|
ts:UnfundedPostemploymentBenefitsMember |
| 1899 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 1900 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1901 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1902 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1903 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1904 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1905 |
Current service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1906 |
Interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1907 |
Curtailments and settlements |
Concept (Monetary) |
For Period |
Credit |
ts:IncreaseDecreaseFromCurtailmentsAndSettlementsNetDefinedBenefitLiabilityAsset |
| 1908 |
Remeasurements (*) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset |
| 1909 |
Benefits paid from the plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1910 |
Other |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset |
| 1911 |
At the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1912 |
Present value of funded obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1913 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1914 |
Liability (*) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 1915 |
128 - Disclosure - Note 20 - Other Liabilities - Actuarial Assumptions (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-actuarial-assumptions-details |
| 1916 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1917 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1918 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1919 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1920 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1921 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1922 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1923 |
Unfunded post-employment benefits [member] |
Member |
|
|
ts:UnfundedPostemploymentBenefitsMember |
| 1924 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 1925 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1926 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1927 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1928 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 1929 |
Rate of compensation increase |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 1930 |
129 - Disclosure - Note 20 - Other Liabilities - Plan Assets (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-20-other-liabilities-plan-assets-details |
| 1931 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1932 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1933 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1934 |
Fair value of funded post-employment benefits [member] |
Member |
|
|
ts:FairValueOfFundedPostemploymentBenefitsMember |
| 1935 |
Funded post-employment benefits [member] |
Member |
|
|
ts:FundedPostemploymentBenefitsMember |
| 1936 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1937 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1938 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1939 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1940 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1941 |
Return on plan assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1942 |
Remeasurements |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1943 |
Contributions paid to the plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanNetDefinedBenefitLiabilityAsset |
| 1944 |
Benefits paid from the plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1945 |
Other |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset |
| 1946 |
At the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1947 |
Equity instruments |
Concept (Percent) |
As Of |
|
ts:EquityInstrumentsPercentContributedToFairValueOfPlanAssets |
| 1948 |
Debt instruments |
Concept (Percent) |
As Of |
|
ts:DebtInstrumentsPercentContributedToFairValueOfPlanAssets |
| 1949 |
Others |
Concept (Percent) |
As Of |
|
ts:OtherAssetsPercentContributedToFairValueOfPlanAssets |
| 1950 |
130 - Disclosure - Note 21 - Non-current Allowances and Provisions - Deducted From Non-current Receivables (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-21-noncurrent-allowances-and-provisions-deducted-from-noncurrent-receivables-details |
| 1951 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1952 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1953 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1954 |
Non-current allowance for receivables [member] |
Member |
|
|
ts:NoncurrentAllowanceForReceivablesMember |
| 1955 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1956 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1957 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1958 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1959 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 1960 |
Used |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 1961 |
Values at the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1962 |
131 - Disclosure - Note 21 - Non-current Allowances and Provisions - Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-21-noncurrent-allowances-and-provisions-liabilities-details |
| 1963 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1964 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1965 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1966 |
Provision for non-current liabilities [member] |
Member |
|
|
ts:ProvisionForNoncurrentLiabilitiesMember |
| 1967 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1968 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1969 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1970 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1971 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 1972 |
Additional provisions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdditionalProvisionsOtherProvisions |
| 1973 |
Reclassifications |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions |
| 1974 |
Used |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 1975 |
Values at the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1976 |
132 - Disclosure - Note 22 - Current Allowances and Provisions - Deducted From Assets (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-22-current-allowances-and-provisions-deducted-from-assets-details |
| 1977 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1978 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1979 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1980 |
Allowance for doubtful accounts - trade receivables [member] |
Member |
|
|
ts:AllowanceForDoubtfulAccountsTradeReceivablesMember |
| 1981 |
Allowance for other doubtful accounts - other receivables [member] |
Member |
|
|
ts:AllowanceForOtherDoubtfulAccountsOtherReceivablesMember |
| 1982 |
Allowance for inventory obsolescence [member] |
Member |
|
|
ts:AllowanceForInventoryObsolescenceMember |
| 1983 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 1984 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 1985 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 1986 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 1987 |
Effect of adoption of new standards |
Concept (Monetary) |
For Period |
Credit |
ts:IncreaseDecreaseDueToEffectOfAdoptionOfNewAccountingStandardsOtherProvisions |
| 1988 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 1989 |
Additional allowances |
Concept (Monetary) |
For Period |
Credit |
ts:IncreaseDecreaseAdditionalAllowancesOtherProvisions |
| 1990 |
Used |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets |
| 1991 |
Reversals / (additional) allowances |
Concept (Monetary) |
For Period |
Credit |
ts:IncreaseDecreaseThroughReversalsAndAdditionalAllowances |
| 1992 |
Values at the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 1993 |
133 - Disclosure - Note 22 - Current Allowances and Provisions - Liabilities (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-22-current-allowances-and-provisions-liabilities-details |
| 1994 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 1995 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1996 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1997 |
Sales risks [member] |
Member |
|
|
ts:SalesRisksMember |
| 1998 |
Miscellaneous other provisions [member] |
Member |
|
|
ifrs-full:MiscellaneousOtherProvisionsMember |
| 1999 |
Provision for current liabilities [member] |
Member |
|
|
ts:ProvisionsForCurrentLiabilitiesMember |
| 2000 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2001 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2002 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2003 |
Values at the beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 2004 |
Translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 2005 |
Additional provisions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdditionalProvisionsOtherProvisions |
| 2006 |
Reclassifications |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions |
| 2007 |
Used |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 2008 |
Values at the end of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 2009 |
134 - Disclosure - Note 23 - Derivative Financial Instruments (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments-details-textual |
| 2010 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2011 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2012 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2013 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2014 |
Non-current derivative financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 2015 |
135 - Disclosure - Note 23 - Derivative Financial Instruments - Net Fair Values (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments-net-fair-values-details |
| 2016 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2017 |
Financial instruments measured at fair value through profit or loss because credit derivative is used to manage credit risk [axis] |
Axis |
|
|
ifrs-full:FinancialInstrumentsMeasuredAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRiskAxis |
| 2018 |
Financial instruments measured at fair value through profit or loss because credit derivative is used to manage credit risk [member] |
Member |
|
|
ifrs-full:FinancialInstrumentsMeasuredAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRiskMember |
| 2019 |
Derivatives hedging borrowings and investments [member] |
Member |
|
|
ts:DerivativesHedgingBorrowingsAndInvestmentsMember |
| 2020 |
Other derivatives [member] |
Member |
|
|
ts:OtherDerivativesMember |
| 2021 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2022 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2023 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2024 |
Derivatives with positive fair values |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DerivativeFinancialAssets |
| 2025 |
Derivatives with negative fair values |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 2026 |
Total |
Concept (Monetary) |
As Of |
Debit |
ts:DerivativeFinancialAssetsLiabilities |
| 2027 |
136 - Disclosure - Note 23 - Derivative Financial Instruments - Foreign Exchange Derivative Contracts and Hedge Accounting (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments-foreign-exchange-derivative-contracts-and-hedge-accounting-details |
| 2028 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2029 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 2030 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 2031 |
Foreign exchange contract, purchase currency ARS, sell currency USD [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyArsSellCurrencyUsdMember |
| 2032 |
Foreign exchange contract, purchase currency USD, sell currency MXN [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyMxnMember |
| 2033 |
Foreign exchange contract, purchase currency USD, sell currency EUR [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyEurMember |
| 2034 |
Foreign exchange contract, purchase currency EUR, sell currency USD [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyEurSellCurrencyUsdMember |
| 2035 |
Foreign exchange contract, purchase currency USD, sell currency KWD [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyKwdMember |
| 2036 |
Foreign exchange contract, purchase currency MXN, sell currency USD [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyMxnSellCurrencyUsdMember |
| 2037 |
Foreign exchange contract, purchase currency USD, sell currency ARS [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyArsMember |
| 2038 |
Foreign exchange contract, purchase currency JPY, sell currency USD [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyJpySellCurrencyUsdMember |
| 2039 |
Foreign exchange contract, purchase currency USD, sell currency BRL [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyBrlMember |
| 2040 |
Foreign exchange contract, purchase currency USD, sell currency GPB [member] |
Member |
|
|
ts:ForeignExchangeContractPurchaseCurrencyUsdSellCurrencyGpbMember |
| 2041 |
Foreign exchange contract, Other [member] |
Member |
|
|
ts:ForeignExchangeContractOtherMember |
| 2042 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 2043 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 2044 |
Cash flow hedges [member] |
Member |
|
|
ifrs-full:CashFlowHedgesMember |
| 2045 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2046 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2047 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2048 |
Fair value of derivatives |
Concept (Monetary) |
As Of |
Debit |
ts:DerivativeFinancialAssetsLiabilities |
| 2049 |
Hedge accounting reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedgesContinuingHedges |
| 2050 |
137 - Disclosure - Note 23 - Derivative Financial Instruments - Hedge Reserve Evolution (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-23-derivative-financial-instruments-hedge-reserve-evolution-details |
| 2051 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2052 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 2053 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 2054 |
Foreign exchange derivatives contracts [member] |
Member |
|
|
ts:ForeignExchangeDerivativesContractsMember |
| 2055 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 2056 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 2057 |
Cash flow hedges [member] |
Member |
|
|
ifrs-full:CashFlowHedgesMember |
| 2058 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2059 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2060 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2061 |
Hedge accounting reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedgesContinuingHedges |
| 2062 |
Movements |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness |
| 2063 |
Hedge accounting reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedgesContinuingHedges |
| 2064 |
138 - Disclosure - Note 24 - Contingencies, Commitments and Restrictions On the Distribution of Profits (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-24-contingencies-commitments-and-restrictions-on-the-distribution-of-profits-details-textual |
| 2065 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2066 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 2067 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 2068 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 2069 |
TENARIS GLOBAL SERVICES S.A. and subsidiaries [member] |
Member |
|
|
ts:TenarisGlobalServicesSaAndSubsidiariesMember |
| 2070 |
TENARIS BAY CITY, INC. [member] |
Member |
|
|
ts:TenarisBayCityIncMember |
| 2071 |
SIDERCA S.A.I.C. and subsidiaries [member] |
Member |
|
|
ts:SidercaSaicAndSubsidiariesMember |
| 2072 |
Segeta [member] |
Member |
|
|
ts:SegetaMember |
| 2073 |
Tamsa [member] |
Member |
|
|
ts:TamsaMember |
| 2074 |
Ternium s.a. [member] |
Member |
|
|
ts:TerniumSAMember |
| 2075 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 2076 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 2077 |
Companhia Siderúrgica Nacional [member] |
Member |
|
|
ts:CompanhiaSiderrgicaNacionalMember |
| 2078 |
Petroamazonas [member] |
Member |
|
|
ts:PetroamazonasMember |
| 2079 |
Contractor [member] |
Member |
|
|
ts:ContractorMember |
| 2080 |
Argentine state-owned company [member] |
Member |
|
|
ts:ArgentineStateownedCompanyMember |
| 2081 |
Mexican tax authorities [member] |
Member |
|
|
ts:MexicanTaxAuthoritiesMember |
| 2082 |
Tribunal de Contas da Uniao [member] |
Member |
|
|
ts:TribunalDeContasDaUniaoMember |
| 2083 |
Transportadora de Gas del Norte S.A. [member] |
Member |
|
|
ts:TransportadoraDeGasDelNorteSaMember |
| 2084 |
Praxair S.A. [member] |
Member |
|
|
ts:PraxairSAMember |
| 2085 |
Graftech [member] |
Member |
|
|
ts:GraftechMember |
| 2086 |
Vale International S.A. [member] |
Member |
|
|
ts:ValeInternationalSAMember |
| 2087 |
Canadian National Railway [member] |
Member |
|
|
ts:CanadianNationalRailwayMember |
| 2088 |
Air Liquide Mexico S. de R.L. de C.V. [member] |
Member |
|
|
ts:AirLiquideMexicoSDeRLDeCVMember |
| 2089 |
Long term contracts with several customers and parent companies guarantees [member] |
Member |
|
|
ts:LongTermContractsWithSeveralCustomersAndParentCompaniesGuaranteesMember |
| 2090 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 2091 |
Contingent liabilities [member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 2092 |
Legal proceedings contingent liability [member] |
Member |
|
|
ifrs-full:LegalProceedingsContingentLiabilityMember |
| 2093 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2094 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2095 |
Confab [member] |
Member |
|
|
ts:ConfabMember |
| 2096 |
Counterparty Name [Axis] |
Axis |
|
|
srt:CounterpartyNameAxis |
| 2097 |
Counterparty Name [Domain] |
Member |
|
|
srt:RepurchaseAgreementCounterpartyNameDomain |
| 2098 |
Chubb [member] |
Member |
|
|
ts:ChubbMember |
| 2099 |
Veracel Celulose S.A. [member] |
Member |
|
|
ts:VeracelCeluloseSaMember |
| 2100 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 2101 |
Entity's total for associates [member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 2102 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 2103 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 2104 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 2105 |
Equity in accordance with Luxembourg law [member] |
Member |
|
|
ts:EquityInAccordanceWithLuxembourgLawMember |
| 2106 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2107 |
Tag-along tender offer to non-controlling interests, percentage |
Concept (Percent) |
As Of |
|
ts:TagalongTenderOfferToNoncontrollingInterestsPercentage |
| 2108 |
Tag-along tender offer to non-controlling interests |
Concept (Share) |
For Period |
|
ts:TagalongTenderOfferToNoncontrollingInterests |
| 2109 |
Tag-along tender offer to non-controlling interests, shares |
Concept (Shares) |
For Period |
|
ts:TagalongTenderOfferToNoncontrollingInterestsShares |
| 2110 |
Tag-along tender offer to non-controlling interests, contingent liability |
Concept (Percent) |
As Of |
|
ts:TagalongTenderOfferToNoncontrollingInterestsContingentLiability |
| 2111 |
Payments for settlement |
Concept (Monetary) |
For Period |
Debit |
ts:PaymentsForSettlement |
| 2112 |
Settlement, amount ordered to pay |
Concept (Monetary) |
As Of |
Credit |
ts:SettlementAmountOrderedToPay |
| 2113 |
Settlement, amount ordered to pay, insurance deductible |
Concept (Monetary) |
As Of |
Credit |
ts:SettlementAmountOrderedToPayInsuranceDeductible |
| 2114 |
Settlement, amount ordered to pay, damages |
Concept (Monetary) |
As Of |
Credit |
ts:SettlementAmountOrderedToPayDamages |
| 2115 |
Estimated financial effect of contingent liabilities |
Concept (Monetary) |
As Of |
|
ifrs-full:EstimatedFinancialEffectOfContingentLiabilities |
| 2116 |
Total excess cost of project |
Concept (Monetary) |
For Period |
Debit |
ts:TotalExcessCostOfProject |
| 2117 |
Proportion of ownership interest in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 2118 |
Term of supply contract |
Concept (xbrli:durationItemType) |
For Period |
|
ts:TermOfSupplyContract |
| 2119 |
Purchase commitments |
Concept (Monetary) |
As Of |
Credit |
ts:PurchaseCommitments |
| 2120 |
Proportion of corporate guarantee covering obligations |
Concept (Percent) |
As Of |
|
ts:ProportionOfCorporateGuaranteeCoveringObligations |
| 2121 |
Percent of annual iron ore needs supplied |
Concept (Percent) |
As Of |
|
ts:PercentOfAnnualIronOreNeedsSupplied |
| 2122 |
Maximum number of tons of pellets supplied annually |
Concept (num:massItemType) |
As Of |
|
ts:MaximumNumberOfTonsOfPelletsSuppliedAnnually |
| 2123 |
Performance Guarantees |
Concept (Monetary) |
As Of |
Credit |
ts:PerformanceGuarantees |
| 2124 |
Distributable retained earnings |
Concept (Monetary) |
As Of |
Credit |
ts:DistributableRetainedEarnings |
| 2125 |
139 - Disclosure - Note 24 - Contingencies, Commitments and Restrictions on the Distribution of Profits - Equity As Defined Under Luxembourg Law and Regulations (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-24-contingencies-commitments-and-restrictions-on-the-distribution-of-profits-equity-as-defined-under-luxembourg-law-and-regulations-details |
| 2126 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2127 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 2128 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 2129 |
Equity in accordance with Luxembourg law [member] |
Member |
|
|
ts:EquityInAccordanceWithLuxembourgLawMember |
| 2130 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2131 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2132 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2133 |
Share capital |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 2134 |
Legal reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherReserves |
| 2135 |
Share premium |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:SharePremium |
| 2136 |
Retained earnings including net income for the year ended December 31, 2018 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 2137 |
Total equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 2138 |
140 - Disclosure - Note 24 - Contingencies, Commitments and Restrictions on the Distribution of Profits - Distributable Amount Under Luxembourg Law (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-24-contingencies-commitments-and-restrictions-on-the-distribution-of-profits-distributable-amount-under-luxembourg-law-details |
| 2139 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2140 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 2141 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 2142 |
Equity in accordance with Luxembourg law [member] |
Member |
|
|
ts:EquityInAccordanceWithLuxembourgLawMember |
| 2143 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2144 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2145 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2146 |
Retained earnings at December 31, 2017 under Luxembourg law |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 2147 |
Other income and expenses for the year ended December 31, 2018 |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherOperatingIncomeExpense |
| 2148 |
Dividends approved |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsClassifiedAsExpense |
| 2149 |
Retained earnings at December 31, 2018 under Luxembourg law |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 2150 |
Share premium |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:SharePremium |
| 2151 |
Distributable amount at December 31, 2018 under Luxembourg law |
Concept (Monetary) |
As Of |
Credit |
ts:DistributableRetainedEarnings |
| 2152 |
141 - Disclosure - Note 25 - Acquisition of Subsidiaries (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-25-acquisition-of-subsidiaries-details-textual |
| 2153 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2154 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 2155 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 2156 |
Garrett [member] |
Member |
|
|
ts:GarrettMember |
| 2157 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2158 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2159 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2160 |
Percentage of voting equity interests acquired |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfVotingEquityInterestsAcquired |
| 2161 |
Total consideration transferred, acquisition-date fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred |
| 2162 |
142 - Disclosure - Note 26 - Cash Flow Disclosures - Cash Flow Disclosures (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-26-cash-flow-disclosures-cash-flow-disclosures-details |
| 2163 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2164 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2165 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2166 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2167 |
Inventories |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInInventories |
| 2168 |
Receivables and prepayments and Current tax assets |
Concept (Monetary) |
For Period |
Debit |
ts:AdjustmentsForIncreaseDecreaseInReceivablesAndPrepaymentsAndCurrentTaxAssets |
| 2169 |
Trade receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables |
| 2170 |
Other liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities |
| 2171 |
Customer advances |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers |
| 2172 |
Trade payables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables |
| 2173 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 2174 |
Income tax accruals less payments |
Abstract |
|
|
ts:IncomeTaxAccrualsLessPaymentsAbstract |
| 2175 |
Tax accrued |
Concept (Monetary) |
For Period |
Debit |
ts:IncomeTaxesAccruedIncludingPortionOfSaleOfDiscontinuedOperations |
| 2176 |
Taxes paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities |
| 2177 |
|
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncomeTaxExpense |
| 2178 |
Interest accruals less payments, net |
Abstract |
|
|
ts:InterestAccrualsLessPaymentsNetAbstract |
| 2179 |
Interest accrued |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 2180 |
Interest received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsOperatingActivities |
| 2181 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsOperatingActivities |
| 2182 |
|
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestRevenueExpense |
| 2183 |
Cash at banks, liquidity funds and short - term investments |
Concept (Monetary) |
As Of |
Debit |
ts:CashAndCashEquivalentsIncludingThePortionOfCashAndCashEquivalentsThatAreClassifiedAsAPartOfADisposalGroup |
| 2184 |
Bank overdrafts |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BankOverdraftsClassifiedAsCashEquivalents |
| 2185 |
|
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition |
| 2186 |
143 - Disclosure - Note 27 - Discontinued Operations (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations-details-textual |
| 2187 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2188 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2189 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2190 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2191 |
Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations |
| 2192 |
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation |
| 2193 |
144 - Disclosure - Note 27 - Discontinued Operations - Components of Discontinued Operation's Net Income (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations-components-of-discontinued-operations-net-income-details |
| 2194 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2195 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2196 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2197 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2198 |
Income from discontinued operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeFromDiscontinuedOperationsAttributableToOwnersOfParent |
| 2199 |
After tax gain on the sale of Conduit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation |
| 2200 |
Net Income for discontinued operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromDiscontinuedOperations |
| 2201 |
145 - Disclosure - Note 27 - Discontinued Operations - Components Gain on Sale After Income Tax for Disposals (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations-components-gain-on-sale-after-income-tax-for-disposals-details |
| 2202 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2203 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2204 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2205 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2206 |
Cash received |
Concept (Monetary) |
For Period |
Debit |
ts:GrossProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations |
| 2207 |
Transaction and other costs |
Concept (Monetary) |
For Period |
Debit |
ts:TransactionAndOtherCostsRelatedToDisposalsOfDiscontinuedOperations |
| 2208 |
Carrying amount of net assets sold |
Concept (Monetary) |
For Period |
Debit |
ts:NetAssetsSoldInDisposalCarryingAmount |
| 2209 |
Gain on sale before income tax |
Concept (Monetary) |
For Period |
Credit |
ts:GrossGainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation |
| 2210 |
Income tax expense on gain |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxExpenseRelatingToGainLossOnDiscontinuance |
| 2211 |
Gain on sale after income tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation |
| 2212 |
146 - Disclosure - Note 27 - Discontinued Operations - Discontinued Operations (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-27-discontinued-operations-discontinued-operations-details |
| 2213 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2214 |
Continuing and discontinued operations [axis] |
Axis |
|
|
ifrs-full:ContinuingAndDiscontinuedOperationsAxis |
| 2215 |
Aggregate continuing and discontinued operations [member] |
Member |
|
|
ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember |
| 2216 |
Discontinued operations [member] |
Member |
|
|
ifrs-full:DiscontinuedOperationsMember |
| 2217 |
Disposal groups classified as held for sale [member] |
Member |
|
|
ifrs-full:DisposalGroupsClassifiedAsHeldForSaleMember |
| 2218 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2219 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2220 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2221 |
Net sales |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 2222 |
Gross profit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GrossProfit |
| 2223 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeFromDiscontinuedOperationsAttributableToOwnersOfParent |
| 2224 |
Basic and diluted earnings per share (U.S. dollars per share), discontinued operations (in dollars per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicAndDilutedEarningsLossPerShareFromDiscontinuedOperations |
| 2225 |
Basic and diluted earnings per ADS (U.S. dollars per ADS) (*), discontinued operations |
Concept (Decimal) |
For Period |
|
ts:BasicAndDilutedEarningsPerAdsFromDiscontinuedOperations |
| 2226 |
Cash at the beginning |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsClassifiedAsPartOfDisposalGroupHeldForSale |
| 2227 |
Cash at the end |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsClassifiedAsPartOfDisposalGroupHeldForSale |
| 2228 |
(Decrease) Increase in cash |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations |
| 2229 |
(Used in) provided by operating activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations |
| 2230 |
Provided by (used in) investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations |
| 2231 |
Used in financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations |
| 2232 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 2233 |
Current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 2234 |
Total assets of disposal group classified as held for sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners |
| 2235 |
Non-current liabilities: |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 2236 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 2237 |
Total liabilities of disposal group classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale |
| 2238 |
147 - Disclosure - Note 28 - Related Party Transactions (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-28-related-party-transactions-details-textual |
| 2239 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2240 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2241 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2242 |
San Faustin S.A. [member] |
Member |
|
|
ts:SanFaustinSaMember |
| 2243 |
Key management personnel of entity or parent [member] |
Member |
|
|
ifrs-full:KeyManagementPersonnelOfEntityOrParentMember |
| 2244 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2245 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2246 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2247 |
Total number of shares issued |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesIssued |
| 2248 |
Proportion of ownership interest in associate |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 2249 |
Key management personnel compensation, short-term employee benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits |
| 2250 |
Units issued, related party transactions |
Concept (Shares) |
For Period |
|
ts:UnitsIssuedRelatedPartyTransactions |
| 2251 |
Key management personnel compensation, share-based payment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment |
| 2252 |
148 - Disclosure - Note 28 - Related Party Transactions - Transactions Carried Out With Related Parties (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-28-related-party-transactions-transactions-carried-out-with-related-parties-details |
| 2253 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2254 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2255 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2256 |
Associates [member] |
Member |
|
|
ifrs-full:AssociatesMember |
| 2257 |
Other related parties [member] |
Member |
|
|
ifrs-full:OtherRelatedPartiesMember |
| 2258 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2259 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2260 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2261 |
Sales of goods to related parties |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions |
| 2262 |
Sales of services to related parties |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions |
| 2263 |
|
Concept (Monetary) |
For Period |
Credit |
ts:RevenueRelatedPartyTransactions |
| 2264 |
Purchases of goods to related parties |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchasesOfGoodsRelatedPartyTransactions |
| 2265 |
Purchases of services to related parties |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions |
| 2266 |
|
Concept (Monetary) |
For Period |
Debit |
ts:PurchasesOfGoodsAndServicesRelatedPartyTransactions |
| 2267 |
Receivables from non-consolidated parties |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AmountsReceivableRelatedPartyTransactions |
| 2268 |
Payables to non-consolidated parties |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AmountsPayableRelatedPartyTransactions |
| 2269 |
|
Concept (Monetary) |
As Of |
Credit |
ts:AmountsReceivablePayableRelatedPartyTransactions |
| 2270 |
149 - Disclosure - Note 29 - Principal Subsidiaries (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-29-principal-subsidiaries-details-textual |
| 2271 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2272 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 2273 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 2274 |
HYDRIL COMPANY and subsidiaries [member] |
Member |
|
|
ts:HydrilCompanyAndSubsidiariesMember |
| 2275 |
Technical Drilling & Production Services Nigeria. Ltd [member] |
Member |
|
|
ts:TechnicalDrillingProductionServicesNigeriaLtdMember |
| 2276 |
Tenaris Supply Chain S.A. [member] |
Member |
|
|
ts:TenarisSupplyChainSaMember |
| 2277 |
Gepnaris S.A. [member] |
Member |
|
|
ts:GepnarisSaMember |
| 2278 |
Tubular Technical Services and Pipe Coaters [member] |
Member |
|
|
ts:TubularTechnicalServicesAndPipeCoatersMember |
| 2279 |
Amaja Tubular Services Limited [member] |
Member |
|
|
ts:AmajaTubularServicesLimitedMember |
| 2280 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2281 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2282 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2283 |
Proportion of ownership interest in subsidiary |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInSubsidiary |
| 2284 |
150 - Disclosure - Note 29 - Principal Subsidiaries - Percentage of Ownership of Each Controlled Company (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-29-principal-subsidiaries-percentage-of-ownership-of-each-controlled-company-details |
| 2285 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2286 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 2287 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 2288 |
CANADA |
Member |
|
|
country:CA |
| 2289 |
BRAZIL |
Member |
|
|
country:BR |
| 2290 |
KAZAKHSTAN |
Member |
|
|
country:KZ |
| 2291 |
UNITED STATES |
Member |
|
|
country:US |
| 2292 |
ITALY |
Member |
|
|
country:IT |
| 2293 |
ROMANIA |
Member |
|
|
country:RO |
| 2294 |
JAPAN |
Member |
|
|
country:JP |
| 2295 |
ARGENTINA |
Member |
|
|
country:AR |
| 2296 |
INDONESIA |
Member |
|
|
country:ID |
| 2297 |
MEXICO |
Member |
|
|
country:MX |
| 2298 |
UNITED KINGDOM |
Member |
|
|
country:GB |
| 2299 |
SWITZERLAND |
Member |
|
|
country:CH |
| 2300 |
URUGUAY |
Member |
|
|
country:UY |
| 2301 |
LUXEMBOURG |
Member |
|
|
country:LU |
| 2302 |
NETHERLANDS |
Member |
|
|
country:NL |
| 2303 |
PORTUGAL |
Member |
|
|
country:PT |
| 2304 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 2305 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 2306 |
ALGOMA TUBES INC. [member] |
Member |
|
|
ts:AlgomaTubesIncMember |
| 2307 |
CONFAB INDUSTRIAL S.A. and subsidiaries [member] |
Member |
|
|
ts:ConfabIndustrialSaAndSubsidiariesMember |
| 2308 |
Kazakhstan Pipe Threaders Limited [member] |
Member |
|
|
ts:KazakhstanPipeThreadersLimitedMember |
| 2309 |
HYDRIL COMPANY and subsidiaries [member] |
Member |
|
|
ts:HydrilCompanyAndSubsidiariesMember |
| 2310 |
DALMINE S.p.A. [member] |
Member |
|
|
ts:DalmineSpaMember |
| 2311 |
MAVERICK TUBE CORPORATION and subsidiaries [member] |
Member |
|
|
ts:MaverickTubeCorporationAndSubsidiariesMember |
| 2312 |
S.C. SILCOTUB S.A. [member] |
Member |
|
|
ts:ScSilcotubSaMember |
| 2313 |
NKKTUBES [member] |
Member |
|
|
ts:NkktubesMember |
| 2314 |
SIAT SOCIEDAD ANONIMA [member] |
Member |
|
|
ts:SiatSociedadAnonimaMember |
| 2315 |
PRUDENTIAL STEEL LTD. [member] |
Member |
|
|
ts:PrudentialSteelLtdMember |
| 2316 |
SIDERCA S.A.I.C. and subsidiaries [member] |
Member |
|
|
ts:SidercaSaicAndSubsidiariesMember |
| 2317 |
PT SEAMLESS PIPE INDONESIA JAYA [member] |
Member |
|
|
ts:PtSeamlessPipeIndonesiaJayaMember |
| 2318 |
TUBOS DE ACERO DE MEXICO S.A. [member] |
Member |
|
|
ts:TubosDeAceroDeMexicoSaMember |
| 2319 |
TENARIS GLOBAL SERVICES (U.S.A.) CORPORATION [member] |
Member |
|
|
ts:TenarisGlobalServicesUsaCorporationMember |
| 2320 |
TENARIS BAY CITY, INC. [member] |
Member |
|
|
ts:TenarisBayCityIncMember |
| 2321 |
TENARIS GLOBAL SERVICES (UK) LTD [member] |
Member |
|
|
ts:TenarisGlobalServicesUkLtdMember |
| 2322 |
TENARIS INVESTMENTS SWITZERLAND AG and subsidiaries [member] |
Member |
|
|
ts:TenarisInvestmentsSwitzerlandAgAndSubsidiariesMember |
| 2323 |
TENARIS FINANCIAL SERVICES S.A. [member] |
Member |
|
|
ts:TenarisFinancialServicesSaMember |
| 2324 |
TENARIS GLOBAL SERVICES (CANADA) INC. [member] |
Member |
|
|
ts:TenarisGlobalServicesCanadaIncMember |
| 2325 |
TENARIS INVESTMENTS S.àr.l. [member] |
Member |
|
|
ts:TenarisInvestmentsSrlMember |
| 2326 |
TENARIS CONNECTIONS BV [member] |
Member |
|
|
ts:TenarisConnectionsBvMember |
| 2327 |
TENARIS GLOBAL SERVICES S.A. and subsidiaries [member] |
Member |
|
|
ts:TenarisGlobalServicesSaAndSubsidiariesMember |
| 2328 |
TALTA—TRADING E MARKETING SOCIEDADE UNIPESSOAL LDA. [member] |
Member |
|
|
ts:TaltatradingEMarketingSociedadeUnipessoalLdaMember |
| 2329 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2330 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2331 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2332 |
Percentage of ownership |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInSubsidiary |
| 2333 |
151 - Disclosure - Note 30 - Nationalization of Venezuelan Subsidiaries (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-30-nationalization-of-venezuelan-subsidiaries-details-textual |
| 2334 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2335 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 2336 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 2337 |
Matesi Materiales Siderúrgicos S.A [member] |
Member |
|
|
ts:MatesiMaterialesSiderrgicosSaMember |
| 2338 |
Tavsa and Comsigua [member] |
Member |
|
|
ts:TavsaAndComsiguaMember |
| 2339 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 2340 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 2341 |
VENEZUELA |
Member |
|
|
country:VE |
| 2342 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2343 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2344 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2345 |
Nationalization of subsidiaries, compensation award not including pre-award interest |
Concept (Monetary) |
For Period |
Debit |
ts:NationalizationOfSubsidiariesCompensationAwardNotIncludingPreawardInterest |
| 2346 |
Nationalization of subsidiaries, pre-award interest |
Concept (Monetary) |
For Period |
Debit |
ts:NationalizationOfSubsidiariesPreawardInterest |
| 2347 |
Nationalization of subsidiaries, compensation award including pre-award interest |
Concept (Monetary) |
For Period |
Debit |
ts:NationalizationOfSubsidiariesCompensationAwardIncludingPreawardInterest |
| 2348 |
Nationalization of subsidiaries, post-award interest rate |
Concept (Percent) |
As Of |
|
ts:NationalizationOfSubsidiariesPostawardInterestRate |
| 2349 |
Nationalization of subsidiaries, compensation award post-award interest |
Concept (Monetary) |
For Period |
Debit |
ts:NationalizationOfSubsidiariesCompensationAwardPostawardInterest |
| 2350 |
Nationalization of subsidiaries, reimbursement of legal fees |
Concept (Monetary) |
For Period |
Debit |
ts:NationalizationOfSubsidiariesReimbursementOfLegalFees |
| 2351 |
Nationalization of subsidiaries, basis spread on variable rate |
Concept (Percent) |
As Of |
|
ts:NationalizationOfSubsidiariesBasisSpreadOnVariableRate |
| 2352 |
Interest receivable |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InterestReceivable |
| 2353 |
Total trade and other non-current receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivables |
| 2354 |
152 - Disclosure - Note 31 - Fees Paid to the Company's Principal Accountant - Fees Accrued for Professional Services (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-31-fees-paid-to-the-companys-principal-accountant-fees-accrued-for-professional-services-details |
| 2355 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2356 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2357 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2358 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2359 |
Audit fees |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AuditorsRemunerationForAuditServices |
| 2360 |
Audit-related fees |
Concept (Monetary) |
For Period |
Debit |
ts:AuditorsRemunerationForAuditrelatedFees |
| 2361 |
Tax fees |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AuditorsRemunerationForTaxServices |
| 2362 |
All other fees |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AuditorsRemunerationForOtherServices |
| 2363 |
Total |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AuditorsRemuneration |
| 2364 |
153 - Disclosure - Note 32 - Subsequent Events (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-32-subsequent-events-details-textual |
| 2365 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2366 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 2367 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 2368 |
Saudi Steel Pipe Company [member] |
Member |
|
|
ts:SaudiSteelPipeCompanyMember |
| 2369 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 2370 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 2371 |
Major business combination [member] |
Member |
|
|
ifrs-full:MajorBusinessCombinationMember |
| 2372 |
Dividends proposed after the reporting period [member] |
Member |
|
|
ts:DividendsProposedAfterTheReportingPeriodMember |
| 2373 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 2374 |
Entity's total for joint ventures [member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 2375 |
Welded pipe plant in West Siberia [member] |
Member |
|
|
ts:WeldedPipePlantInWestSiberiaMember |
| 2376 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2377 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2378 |
PAO Severstal [member] |
Member |
|
|
ts:PAOPSeverstalMember |
| 2379 |
Techgen s.a. [member] |
Member |
|
|
ts:TechgenSAMember |
| 2380 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 2381 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 2382 |
Several banks, to refinance obligations [member] |
Member |
|
|
ts:SeveralBanksToRefinanceObligationsMember |
| 2383 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2384 |
Percentage of voting equity interests acquired |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfVotingEquityInterestsAcquired |
| 2385 |
Cash transferred |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashTransferred |
| 2386 |
Manufacturing capacity, steel pipes |
Concept (num:massItemType) |
As Of |
|
ts:ManufacturingCapacitySteelPipes |
| 2387 |
Total assets and liabilities acquired |
Concept (Monetary) |
As Of |
Debit |
ts:TotalAssetsAndLiabilitiesAcquired |
| 2388 |
Proportion of ownership interest in joint venture |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInJointVenture |
| 2389 |
Investments in joint ventures |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInJointVentures |
| 2390 |
Debt instruments issued |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DebtSecurities |
| 2391 |
Debt service coverage ratio, covered, percent |
Concept (Percent) |
As Of |
|
ts:DebtServiceCoverageRatioCoveredPercent |
| 2392 |
Letters of credit, covered |
Concept (Monetary) |
As Of |
Credit |
ts:LettersOfCreditCovered |
| 2393 |
Dividends payable, amount per share including interim dividend |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerShareIncludingInterimDividend |
| 2394 |
Dividends payable, amount per ads including interim dividend |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerAdsIncludingInterimDividend |
| 2395 |
Dividends payable including interim dividends |
Concept (Monetary) |
As Of |
Credit |
ts:DividendsPayableIncludingInterimDividends |
| 2396 |
Dividends paid, ordinary shares per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsPaidOrdinarySharesPerShare |
| 2397 |
Dividends paid, per ads |
Concept (Share) |
For Period |
|
ts:DividendsPaidPerADS |
| 2398 |
Dividends recognised as distributions to owners |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsPaid |
| 2399 |
Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare |
| 2400 |
Dividends payable, amount per ads |
Concept (Share) |
As Of |
|
ts:DividendsPayableAmountPerADS |
| 2401 |
Dividend payables |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DividendPayables |
| 2402 |
154 - Disclosure - Note 32 - Subsequent Events - Assets and Liabilities Assumed (Details) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-32-subsequent-events-assets-and-liabilities-assumed-details |
| 2403 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2404 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 2405 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 2406 |
Saudi Steel Pipe Company [member] |
Member |
|
|
ts:SaudiSteelPipeCompanyMember |
| 2407 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 2408 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 2409 |
Major business combination [member] |
Member |
|
|
ifrs-full:MajorBusinessCombinationMember |
| 2410 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2411 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2412 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2413 |
Property, Plant and Equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate |
| 2414 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate |
| 2415 |
Investment in associated |
Concept (Monetary) |
As Of |
Debit |
ts:InvestmentsRecognisedAsOfAcquisitionDate |
| 2416 |
Working capital |
Concept (Monetary) |
As Of |
Debit |
ts:WorkingCapitalRecognisedAsOfAcquisitionDate |
| 2417 |
Cash and Cash Equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate |
| 2418 |
Other Receivables |
Concept (Monetary) |
As Of |
Debit |
ts:OtherReceivablesRecognisedAsOfAcquisitionDate |
| 2419 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate |
| 2420 |
Employees end of service benefits |
Concept (Monetary) |
As Of |
Credit |
ts:EmployeeServiceBenefitsRecognisedAsOfAcquisitionDate |
| 2421 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed |
| 2422 |
155 - Disclosure - Note 33 - Update As of April 1, 2019 (Details Textual) |
Network |
* |
* |
http://us.tenaris.com/20181231/role/statement-note-33-update-as-of-april-1-2019-details-textual |
| 2423 |
Statement Table [Table] |
Table |
* |
* |
ts:StatementTable |
| 2424 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 2425 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 2426 |
IPSCO acquisition [member] |
Member |
|
|
ts:IPSCOAcquisitionMember |
| 2427 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 2428 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 2429 |
Major business combination [member] |
Member |
|
|
ifrs-full:MajorBusinessCombinationMember |
| 2430 |
Legal Entity [Axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2431 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2432 |
Statement Line Items [Line Items] |
LineItems |
|
|
ts:StatementLineItems |
| 2433 |
Percentage of voting equity interests acquired |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfVotingEquityInterestsAcquired |
| 2434 |
Cash transferred |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashTransferred |
| 2435 |
Manufacturing capacity, steel bars |
Concept (num:massItemType) |
As Of |
|
ts:ManufacturingCapacitySteelBars |
| 2436 |
Manufacturing capacity, seamless pipes |
Concept (num:massItemType) |
As Of |
|
ts:ManufacturingCapacitySeamlessPipes |
| 2437 |
Manufacturing capacity, welded pipes |
Concept (num:massItemType) |
As Of |
|
ts:ManufacturingCapacityWeldedPipes |